diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb52d2e7..8cbfba62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@
 ### Changed
 
 - 专业学位的“工程领域”改为“专业领域”，同步《指南》2023 年 3 月版的更改（[#862](https://github.com/tuna/thuthesis/issues/862)）。
+- 附录中的参考文献另行编号（[#837](https://github.com/tuna/thuthesis/issues/837)，感谢 [@hushidong](https://github.com/hushidong) 和 [@atxy-blip](https://github.com/atxy-blip)）。
 
 ### Deprecated
 
diff --git a/data/appendix.tex b/data/appendix.tex
index 85b9ea6e..a92ef69b 100644
--- a/data/appendix.tex
+++ b/data/appendix.tex
@@ -4,12 +4,14 @@ \chapter{补充内容}
 
 附录是与论文内容密切相关、但编入正文又影响整篇论文编排的条理和逻辑性的资料，例如某些重要的数据表格、计算程序、统计表等，是论文主体的补充内容，可根据需要设置。
 
+附录中的图、表、数学表达式、参考文献等另行编序号，与正文分开，一律用阿拉伯数字编码，
+但在数码前冠以附录的序号，例如“图~\ref{fig:appendix-figure}”，
+“表~\ref{tab:appendix-table}”，“式\eqref{eq:appendix-equation}”等。
 
-\section{图表示例}
 
-\subsection{图}
+\section{插图}
 
-附录中的图片示例（图~\ref{fig:appendix-figure}）。
+% 附录中的插图示例（图~\ref{fig:appendix-figure}）。
 
 \begin{figure}
   \centering
@@ -19,9 +21,9 @@ \subsection{图}
 \end{figure}
 
 
-\subsection{表格}
+\section{表格}
 
-附录中的表格示例（表~\ref{tab:appendix-table}）。
+% 附录中的表格示例（表~\ref{tab:appendix-table}）。
 
 \begin{table}
   \centering
@@ -41,10 +43,18 @@ \subsection{表格}
 \end{table}
 
 
-\section{数学公式}
+\section{数学表达式}
 
-附录中的数学公式示例（公式\eqref{eq:appendix-equation}）。
+% 附录中的数学表达式示例（式\eqref{eq:appendix-equation}）。
 \begin{equation}
   \frac{1}{2 \uppi \symup{i}} \int_\gamma f = \sum_{k=1}^m n(\gamma; a_k) \mathscr{R}(f; a_k)
   \label{eq:appendix-equation}
 \end{equation}
+
+
+\section{参考文献}
+
+附录中的参考文献示例（\cite{carlson1981two} 和 \cite{carlson1981two,taylor1983scanning,taylor1981study}）。
+
+\bibliographystyle{thuthesis-numeric}
+\bibliography{ref/refs}
diff --git a/testfiles/09-main-en.tlg b/testfiles/09-main-en.tlg
index 23084c8f..f0057305 100644
--- a/testfiles/09-main-en.tlg
+++ b/testfiles/09-main-en.tlg
@@ -3615,6 +3615,8 @@ Completed box being shipped out [2]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+\bibcite{bib1}{{1}{}{{}}{{}}}
+\bibcite{bib2}{{2}{}{{}}{{}}}
 LaTeX Font Info:    Font shape `TU/XITSMath-Regular(2)/m/n' will be
 (Font)              scaled to size 10.54048pt on input line ....
 LaTeX Font Info:    Font shape `TU/XITSMath-Regular(2)/m/n' will be
@@ -3627,6 +3629,16 @@ LaTeX Font Info:    Font shape `TU/XITSMath-Regular(3)/m/n' will be
 (Font)              scaled to size 6.99925pt on input line ....
 LaTeX Font Info:    Font shape `TU/XITSMath-Regular(3)/m/n' will be
 (Font)              scaled to size 4.99947pt on input line ....
+\bibcite{bib3}{{3}{}{{}}{{}}}
+\bibcite{bib4}{{4}{}{{}}{{}}}
+\bibcite{bib5}{{5}{}{{}}{{}}}
+\bibcite{bib6}{{6}{}{{}}{{}}}
+\bibcite{bib7}{{7}{}{{}}{{}}}
+\bibcite{bib8}{{8}{}{{}}{{}}}
+\bibcite{bib9}{{9}{}{{}}{{}}}
+\bibcite{bib10}{{10}{}{{}}{{}}}
+\bibcite{bib11}{{11}{}{{}}{{}}}
+No file bu.aux.
 Completed box being shipped out [3]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -6781,6 +6793,7 @@ Completed box being shipped out [4]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [5]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -7255,6 +7268,7 @@ Completed box being shipped out [5]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [6]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -7413,6 +7427,7 @@ Completed box being shipped out [6]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [7]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -7910,6 +7925,7 @@ Completed box being shipped out [7]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [8]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -8235,6 +8251,7 @@ Completed box being shipped out [9]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [10]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
diff --git a/testfiles/11-appendix.tlg b/testfiles/11-appendix.tlg
index 8ef66466..e58d6807 100644
--- a/testfiles/11-appendix.tlg
+++ b/testfiles/11-appendix.tlg
@@ -1,5 +1,6 @@
 This is a generated file for the l3build validation system.
 Don't change this file in any respect.
+No file bu.aux.
 附录 A
 Package fontspec Info: Font "FandolHei-Regular" does not contain requested
 (fontspec)             Script "CJK".
diff --git a/testfiles/12-acknowledgements.tlg b/testfiles/12-acknowledgements.tlg
index 588af137..08a6de11 100644
--- a/testfiles/12-acknowledgements.tlg
+++ b/testfiles/12-acknowledgements.tlg
@@ -1,5 +1,6 @@
 This is a generated file for the l3build validation system.
 Don't change this file in any respect.
+No file bu.aux.
 Package fontspec Info: Font "FandolHei-Regular" does not contain requested
 (fontspec)             Script "CJK".
 Package fontspec Info: Font family 'FandolHei(0)' created for font 'FandolHei'
diff --git a/testfiles/13-statement.tlg b/testfiles/13-statement.tlg
index f1ea2056..8e85716a 100644
--- a/testfiles/13-statement.tlg
+++ b/testfiles/13-statement.tlg
@@ -1,5 +1,6 @@
 This is a generated file for the l3build validation system.
 Don't change this file in any respect.
+No file bu.aux.
 Package fontspec Info: Font "FandolHei-Regular" does not contain requested
 (fontspec)             Script "CJK".
 Package fontspec Info: Font family 'FandolHei(0)' created for font 'FandolHei'
diff --git a/testfiles/14-resume.tlg b/testfiles/14-resume.tlg
index 15b57bef..077af9ba 100644
--- a/testfiles/14-resume.tlg
+++ b/testfiles/14-resume.tlg
@@ -1,5 +1,6 @@
 This is a generated file for the l3build validation system.
 Don't change this file in any respect.
+No file bu.aux.
 Package fontspec Info: Font "FandolHei-Regular" does not contain requested
 (fontspec)             Script "CJK".
 Package fontspec Info: Font family 'FandolHei(0)' created for font 'FandolHei'
diff --git a/testfiles/package-hyperref.tlg b/testfiles/package-hyperref.tlg
index 0cfc4b11..9414d678 100644
--- a/testfiles/package-hyperref.tlg
+++ b/testfiles/package-hyperref.tlg
@@ -87,7 +87,7 @@ Completed box being shipped out [1]
 ....\write-{}
 ....\write-{}
 ....\special{pdf:dest (section*.1) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{thuchapter.1.0}{\376\377\133\146\117\115\213\ETC.}
+....\write4{\protect \BOOKMARK [0][]{thuchapter.1.0}{\376\377\133\146\117\115\213\ETC.}
 ....\special{pdf:dest (thuchapter.1.0) [@thispage /XYZ @xpos @ypos null]}
 ....\write-{}
 ....\special{pdf:dest (chapter*.2) [@thispage /XYZ @xpos @ypos null]}
@@ -322,7 +322,7 @@ Completed box being shipped out [1]
 ...\vbox(674.33032+0.0)x426.79135, glue set 555.3869fil
 ....\write-{}
 ....\special{pdf:dest (section*.3) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.3}{\376\377\144\130\211\201}{}% 2}
+....\write4{\protect \BOOKMARK [0][]{section*.3}{\376\377\144\130\211\201}{}% 2}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{摘\hskip 1em\relax
  \ETC.}
 ....\write-{}
@@ -596,7 +596,7 @@ Completed box being shipped out [2]
 ...\vbox(674.33032+0.0)x426.79135, glue set 559.65796fill
 ....\write-{}
 ....\special{pdf:dest (section*.5) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.5}{\376\377\000A\000b\000s\000t\000\ETC.}
+....\write4{\protect \BOOKMARK [0][]{section*.5}{\376\377\000A\000b\000s\000t\000\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{Abstract}{\thepage \ETC.}
 ....\write-{}
 ....\special{pdf:dest (chapter*.6) [@thispage /XYZ @xpos @ypos null]}
@@ -830,7 +830,7 @@ Completed box being shipped out [3]
 ...\vbox(674.33032+0.0)x426.79135, glue set 200.46844fil
 ....\write-{}
 ....\special{pdf:dest (section*.7) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.7}{\376\377\000T\000a\000b\000l\000\ETC.}
+....\write4{\protect \BOOKMARK [0][]{section*.7}{\376\377\000T\000a\000b\000l\000\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{Table of Contents}{\ETC.}
 ....\write-{}
 ....\special{pdf:dest (chapter*.8) [@thispage /XYZ @xpos @ypos null]}
@@ -1748,7 +1748,7 @@ Completed box being shipped out [4]
 ...\vbox(674.33032+0.0)x426.79135, glue set 553.75056fil
 ....\write-{}
 ....\special{pdf:dest (section*.9) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.9}{\376\377\000L\000i\000s\000t\000\ETC.}
+....\write4{\protect \BOOKMARK [0][]{section*.9}{\376\377\000L\000i\000s\000t\000\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{List of Figures and\ETC.}
 ....\write-{}
 ....\special{pdf:dest (chapter*.10) [@thispage /XYZ @xpos @ypos null]}
@@ -2033,7 +2033,7 @@ Completed box being shipped out [5]
 ...\vbox(674.33032+0.0)x426.79135, glue set 561.20389fil
 ....\write-{}
 ....\special{pdf:dest (section*.11) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.11}{\376\377\000L\000i\000s\000t\00\ETC.}
+....\write4{\protect \BOOKMARK [0][]{section*.11}{\376\377\000L\000i\000s\000t\00\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{List of Symbols and\ETC.}
 ....\write-{}
 ....\special{pdf:dest (chapter*.12) [@thispage /XYZ @xpos @ypos null]}
@@ -2416,7 +2416,7 @@ Completed box being shipped out [1]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [1][-]{section.0.1}{\376\377\0000\000.\0001\000\04\ETC.}
+....\write4{\protect \BOOKMARK [1][-]{section.0.1}{\376\377\0000\000.\0001\000\04\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {section}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -2982,7 +2982,7 @@ Completed box being shipped out [1]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [1][-]{section.0.2}{\376\377\0000\000.\0002\000\04\ETC.}
+....\write4{\protect \BOOKMARK [1][-]{section.0.2}{\376\377\0000\000.\0002\000\04\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {section}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -3119,7 +3119,7 @@ Completed box being shipped out [1]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [2][-]{subsection.0.2.1}{\376\377\0000\000.\0002\0\ETC.}
+....\write4{\protect \BOOKMARK [2][-]{subsection.0.2.1}{\376\377\0000\000.\0002\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {subsection}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -3597,6 +3597,7 @@ Completed box being shipped out [1]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+Package natbib Warning: Citation `bib1' on page 2 undefined on input line ....
 Completed box being shipped out [2]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -3693,7 +3694,7 @@ Completed box being shipped out [2]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [2][-]{subsection.0.2.2}{\376\377\0000\000.\0002\0\ETC.}
+....\write4{\protect \BOOKMARK [2][-]{subsection.0.2.2}{\376\377\0000\000.\0002\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {subsection}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -4191,14 +4192,14 @@ Completed box being shipped out [2]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [2][-]{subsection.0.2.3}{\376\377\0000\000.\0002\0\ETC.}
+....\write4{\protect \BOOKMARK [2][-]{subsection.0.2.3}{\376\377\0000\000.\0002\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {subsection}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
 ....\glue(\parskip) 0.0 plus 1.0
 ....\glue(\parskip) 0.0
-....\glue(\baselineskip) 9.03226
-....\hbox(10.92532+0.16861)x426.79135, glue set 258.05176fil
+....\glue(\baselineskip) 8.91481
+....\hbox(11.04277+0.16861)x426.79135, glue set 255.04051fil
 .....\hbox(0.0+0.0)x21.05519
 .....\TU/texgyretermes(0)/m/n/12.045 The
 .....\glue 3.01125 plus 1.50562 minus 1.00374
@@ -4207,14 +4208,12 @@ Completed box being shipped out [2]
 .....\kern 0.0002
 .....\kern 1.0
 .....\mathon
-.....\hbox(6.10681+1.40926)x11.03336, shifted -4.81851
+.....\hbox(6.22426+1.40926)x14.0446, shifted -4.81851
 ......\TU/texgyretermes(0)/m/n/9.03375 [
-......\hbox(6.10681+0.0)x4.51688
-.......\special{pdf:bann<</Type/Annot/Subtype/Link/Border[0 0 0]/H/I/C[0 1 0]/A<</S/G\ETC.}
-.......\TU/texgyretermes(0)/m/n/9.03375 1
-.......\kern -0.0002
-.......\kern 0.0002
-.......\special{pdf:eann}
+......\TU/texgyretermes(0)/b/n/9.03375 ?
+......\kern -0.0002
+......\kern 0.0002
+......\glue 3.01125 plus 3.38763 minus 0.25093
 ......\TU/texgyretermes(0)/m/n/9.03375 ]
 ......\kern -0.0002
 ......\kern 0.0002
@@ -4289,6 +4288,8 @@ Completed box being shipped out [2]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+\bibcite{bib1}{{1}{2001}{{Lin}}{{}}}
+No file bu.aux.
 Completed box being shipped out [3]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -4367,7 +4368,7 @@ Completed box being shipped out [3]
 ....\write1{\ttl@writefile{toc}{\protect \setcounter {tocdepth}{0}}}
 ....\write-{}
 ....\special{pdf:dest (section*.15) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.15}{\376\377\000R\000e\000f\000e\00\ETC.}
+....\write4{\protect \BOOKMARK [0][]{section*.15}{\376\377\000R\000e\000f\000e\00\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{References}{\thepage \ETC.}
 ....\write-{}
 ....\special{pdf:dest (chapter*.16) [@thispage /XYZ @xpos @ypos null]}
@@ -4397,11 +4398,11 @@ Completed box being shipped out [3]
 ....\glue(\parskip) 0.0
 ....\glue(\parskip) 0.0
 ....\hbox(7.1984+1.64412)x398.33861, glue set 24.76723fil, shifted 28.45274
-.....\hbox(7.12462+1.64412)x0.0
+.....\hbox(6.97707+1.64412)x0.0
 ......\glue 0.0
 ......\glue -25.6073
 ......\glue -2.84544
-......\hbox(7.12462+1.64412)x25.6073, glue set 13.31839fill
+......\hbox(6.97707+1.64412)x25.6073, glue set 18.58807fill
 .......\special{color push gray 0}
 .......\glue 0.0 plus 1.0fil
 .......\glue 0.0 plus 1.0fil
@@ -4410,7 +4411,7 @@ Completed box being shipped out [3]
 ........\hbox(0.0+0.0)x0.0, shifted -16.06
 .........\special{pdf:dest (cite.bib1) [@thispage /XYZ @xpos @ypos null]}
 .........\penalty 10000
-.......\TU/texgyretermes(0)/m/n/10.53937 [1]
+.......\TU/texgyretermes(0)/m/n/10.53937 []
 .......\kern -0.0002
 .......\kern 0.0002
 .......\glue 0.0 plus 1.0fill
@@ -4517,6 +4518,7 @@ Missing character: There is no ⁡ (U+2061) in font [XITSMath-Regular.otf]/OT:sc
 ipt=math;language=dflt;!
 Missing character: There is no ⁡ (U+2061) in font [XITSMath-Regular.otf]/OT:scr
 ipt=math;language=dflt;!
+No file bu.aux.
 Completed box being shipped out [4]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -4598,7 +4600,7 @@ Completed box being shipped out [4]
 ....\write-{}
 ....\write1{\pp@pagectr{footnote}{2}{\theabspage }{\thepage }}
 ....\special{pdf:dest (appendix.A) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{appendix.A}{\376\377\000A\000p\000p\000e\000\ETC.}
+....\write4{\protect \BOOKMARK [0][]{appendix.A}{\376\377\000A\000p\000p\000e\000\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{\protect \numberline \ETC.}
 ....\marks1{Appendix A Title}
 ....\marks2{\prg_do_nothing: }
@@ -4644,7 +4646,7 @@ Completed box being shipped out [4]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [1][-]{section.A.1}{\376\377\000A\000.\0001\000\04\ETC.}
+....\write4{\protect \BOOKMARK [1][-]{section.A.1}{\376\377\000A\000.\0001\000\04\ETC.}
 ....\penalty 10000
 ....\write1{\@writefile{toc}{\protect \contentsline {section}{\protect \numberline \ETC.}
 ....\penalty 10000
@@ -4782,7 +4784,7 @@ Completed box being shipped out [4]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [2][-]{subsection.A.1.1}{\376\377\000A\000.\0001\0\ETC.}
+....\write4{\protect \BOOKMARK [2][-]{subsection.A.1.1}{\376\377\000A\000.\0001\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {subsection}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -4975,7 +4977,7 @@ Completed box being shipped out [4]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [2][-]{subsection.A.1.2}{\376\377\000A\000.\0001\0\ETC.}
+....\write4{\protect \BOOKMARK [2][-]{subsection.A.1.2}{\376\377\000A\000.\0001\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {subsection}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -5013,7 +5015,7 @@ Completed box being shipped out [4]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [2][-]{subsection.A.1.3}{\376\377\000A\000.\0001\0\ETC.}
+....\write4{\protect \BOOKMARK [2][-]{subsection.A.1.3}{\376\377\000A\000.\0001\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {subsection}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -5068,7 +5070,7 @@ Completed box being shipped out [4]
 .....\penalty 10000
 .....\glue(\parfillskip) 0.0 plus 1.0fil
 .....\glue(\rightskip) 0.0
-....\write3{\protect \BOOKMARK [1][-]{section.A.2}{\376\377\000A\000.\0002\000\04\ETC.}
+....\write4{\protect \BOOKMARK [1][-]{section.A.2}{\376\377\000A\000.\0002\000\04\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {section}{\protect \numberline \ETC.}
 ....\penalty 10000
 ....\glue 6.02249
@@ -5524,6 +5526,7 @@ Completed box being shipped out [5]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [6]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -5600,7 +5603,7 @@ Completed box being shipped out [6]
 ...\vbox(674.33032+0.0)x426.79135, glue set 599.99681fil
 ....\write-{}
 ....\special{pdf:dest (section*.19) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.19}{\376\377\000A\000c\000k\000n\00\ETC.}
+....\write4{\protect \BOOKMARK [0][]{section*.19}{\376\377\000A\000c\000k\000n\00\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{Acknowledgements}{\thepage \ETC.}
 ....\write-{}
 ....\special{pdf:dest (appendix*.20) [@thispage /XYZ @xpos @ypos null]}
@@ -5699,6 +5702,7 @@ Completed box being shipped out [6]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [7]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -5779,7 +5783,7 @@ Completed box being shipped out [7]
 ...\vbox(674.33032+0.0)x426.79135, glue set 458.08081fil
 ....\write-{}
 ....\special{pdf:dest (section*.21) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.21}{\376\377\130\360\146\016}{}% 20}
+....\write4{\protect \BOOKMARK [0][]{section*.21}{\376\377\130\360\146\016}{}% 20}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{声\protect \hspace
   \ETC.}
 ....\write-{}
@@ -6213,6 +6217,7 @@ Completed box being shipped out [7]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [8]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -6289,7 +6294,7 @@ Completed box being shipped out [8]
 ...\vbox(674.33032+0.0)x426.79135, glue set 599.99681fil
 ....\write-{}
 ....\special{pdf:dest (section*.23) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{section*.23}{\376\377\000R\000e\000s\000u\00\ETC.}
+....\write4{\protect \BOOKMARK [0][]{section*.23}{\376\377\000R\000e\000s\000u\00\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{Resume}{\thepage }{\ETC.}
 ....\write-{}
 ....\special{pdf:dest (appendix*.24) [@thispage /XYZ @xpos @ypos null]}
@@ -6470,7 +6475,7 @@ Completed box being shipped out [9]
 ...\vbox(674.33032+0.0)x426.79135, glue set 599.99681fil
 ....\write-{}
 ....\special{pdf:dest (appendix*.25) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{appendix*.25}{\376\377\000C\000o\000m\000m\0\ETC.}
+....\write4{\protect \BOOKMARK [0][]{appendix*.25}{\376\377\000C\000o\000m\000m\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{Comments from Thesi\ETC.}
 ....\marks1{Comments from Thesis Supervisor}
 ....\marks2{\prg_do_nothing: }
@@ -6571,6 +6576,7 @@ Completed box being shipped out [9]
 ...\glue 0.0 plus 1.0fil minus 1.0fil
 .\kern 714.29128
 .\kern 0.0
+No file bu.aux.
 Completed box being shipped out [10]
 \vbox(710.18088+4.1104)x439.87962
 .\hbox(0.0+0.0)x0.0
@@ -6656,7 +6662,7 @@ Completed box being shipped out [10]
 ....\write-{}
 ....\write-{}
 ....\special{pdf:dest (appendix*.26) [@thispage /XYZ @xpos @ypos null]}
-....\write3{\protect \BOOKMARK [0][]{appendix*.26}{\376\377\000R\000e\000s\000o\0\ETC.}
+....\write4{\protect \BOOKMARK [0][]{appendix*.26}{\376\377\000R\000e\000s\000o\0\ETC.}
 ....\write1{\@writefile{toc}{\protect \contentsline {chapter}{Resolution of Thesi\ETC.}
 ....\marks1{Resolution of Thesis Defense Committee}
 ....\marks2{\prg_do_nothing: }
diff --git a/thuthesis.dtx b/thuthesis.dtx
index 79217085..6fed9ff8 100644
--- a/thuthesis.dtx
+++ b/thuthesis.dtx
@@ -1815,11 +1815,9 @@
   }
 }
 \AtEndOfPackageFile*{natbib}{
-  \ifthu@degree@bachelor
-    \@ifpackageloaded{apacite}{}{
-      \RequirePackage{bibunits}
-    }
-  \fi
+  \@ifpackageloaded{apacite}{}{
+    \RequirePackage{bibunits}
+  }
 }
 %    \end{macrocode}
 %
@@ -5552,6 +5550,7 @@
 %    \begin{macrocode}
 \newenvironment{acknowledgements}{%
   \@mainmatterfalse
+  \thu@end@appendix@ref@section
   \ifthu@degree@bachelor
     \cleardoublepage
   \fi
@@ -5600,6 +5599,7 @@
 \newif\ifthu@statement@exists
 \newcommand\statement[1][]{%
   \@mainmatterfalse
+  \thu@end@appendix@ref@section
   \thu@statement@existstrue
   \ifthu@degree@bachelor
     \cleardoublepage
@@ -6307,6 +6307,67 @@
 }
 %    \end{macrocode}
 %
+% 附录中的参考文献等另行编序号。
+%    \begin{macrocode}
+\newcommand\thu@end@appendix@ref@section{}
+%    \end{macrocode}
+%
+% 如果正文和附录引用了同一文献，\pkg{bibunits} 会给出无意义的警告，这里消除警告。
+%    \begin{macrocode}
+\AtEndOfPackageFile*{bibunits}{
+  \ifthu@degree@graduate
+    \newcommand\thu@appendix@bib@num@format[1]{[\@Alph\c@chapter.#1]\hfill}
+    \g@addto@macro\appendix{%
+      \renewcommand\@bibunitname{\jobname-appendix-\@alph\c@chapter}%
+      \bibliographyunit[\chapter]%
+      \renewcommand\citenumfont{\@Alph\c@chapter.}%
+      \renewcommand\bibsection{%
+        \ctexset{section/numbering = false}%
+        \section{\bibname}%
+        \ctexset{section/numbering = true}%
+      }%
+      \renewcommand\@extra@binfo{@-\@alph\c@chapter}%
+      \renewcommand\@extra@b@citeb{@-\@alph\c@chapter}%
+      \let\bibnumfmt\thu@appendix@bib@num@format
+      \let\bibliographystyle\defaultbibliographystyle
+      \let\bibliography\thu@appendix@bibliography
+    }
+    \renewcommand\thu@end@appendix@ref@section{%
+      \bibliographyunit\relax
+    }
+    \AtEndDocument{\thu@end@appendix@ref@section}
+%    \end{macrocode}
+%
+% 如果正文和附录引用了同一文献，\pkg{bibunits} 会给出无意义的警告，这里消除警告。
+%    \begin{macrocode}
+    % \let\@xtestdef\@gobbletwo  % This doesn't work
+    \def\bibunits@rerun@warning{\relax}
+  \fi
+}
+\PassOptionsToPackage{defernumbers = true}{biblatex}
+\AtEndOfPackageFile*{biblatex}{
+  \ifthu@degree@graduate
+    \DeclareRefcontext{appendix}{}
+    \g@addto@macro\appendix{%
+      \pretocmd\chapter{%
+        \newrefsection
+        \@tempcnta=\c@chapter
+        \advance\@tempcnta\@ne
+        \newrefcontext[labelprefix = {\@Alph\@tempcnta.}]{appendix}%
+      }{}{\thu@patch@error{\chapter}}%
+      \defbibheading{bibliography}[\bibname]{%
+        \ctexset{section/numbering = false}%
+        \section{#1}%
+        \ctexset{section/numbering = true}%
+      }%
+    }
+    % \renewcommand\thu@end@appendix@ref@section{%
+    %   \endrefsection
+    % }
+  \fi
+}
+%    \end{macrocode}
+%
 % 本科生《写作指南》有独特的要求：附录 A 为外文资料的调研阅读报告或书面翻译，
 % 并且要分别附上独立的参考文献和外文资料的原文索引。
 % 所以这里定义 \env{survey} 和 \env{translation} 专门处理这两种情况，
@@ -6482,6 +6543,7 @@
 %    \begin{macrocode}
 \newenvironment{resume}{%
   \@mainmatterfalse
+  \thu@end@appendix@ref@section
   \thu@chapter*{\thu@resume@name}%
   \ctexset{
     section = {
@@ -6584,6 +6646,7 @@
 % \begin{environment}{comments}
 %    \begin{macrocode}
 \NewEnviron{comments}[1][]{%
+  \thu@end@appendix@ref@section
   \ifthu@degree@graduate
     \@mainmatterfalse
     \kv@define@key{thu@comments}{name}{\let\thu@comments@name\kv@value}%
@@ -6606,6 +6669,7 @@
 % \begin{environment}{resolution}
 %    \begin{macrocode}
 \NewEnviron{resolution}{%
+  \thu@end@appendix@ref@section
   \ifthu@degree@graduate
     \@mainmatterfalse
     \chapter{\thu@resolution@name}%