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How to decrease the font size of 'References'? I want to make it 11pt fontsize.

\documentclass[a4paper,oneside,11pt]{article}
\usepackage[left=2.5cm,right=2.5cm,top=4cm,bottom=2.7cm]{geometry}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{enumitem}
\usepackage{array}
\usepackage{mathptmx}
\usepackage{hyperref}
\usepackage{changepage}
\tolerance=1
\emergencystretch=\maxdimen
\hyphenpenalty=10000
\hbadness=10000

\AtBeginDocument{%
    \addtolength\abovedisplayskip{-0.2\baselineskip}%
    \addtolength\belowdisplayskip{-0.2\baselineskip}%
}
\begin{document}
    \allowdisplaybreaks
    \vspace*{79.4pt}
    \begingroup
    \fontsize{17}{0.7cm}\selectfont
    \begin{flushleft}
        \textbf{\uppercase{TITLE OF ARTICLE     
        }}
    \end{flushleft}
\endgroup
\vspace{28.35pt}
\begin{adjustwidth}{25mm}{0mm}
\textbf{Name}\vspace{5.65pt}\\
Institution and adresses\\
\\
email \vspace{12pt}\\
\begingroup
\fontsize{10}{12}\selectfont
\textbf{Abstract.} 
In this paper, we introduce about blablabla. 
\vspace{6pt}\\
\textbf{Keywords}: blablabla\vspace{10mm}
\endgroup
\end{adjustwidth}

\begin{thebibliography}{999}
    
    \bibitem{yesyesyes}
    Author,
    \emph{Book title}.
    publisher, city,
    2nd Edition,
    2020.
    
\end{thebibliography}
\end{document}

enter image description here

4
  • Off-topic: Does the real bibliography of your document contain more than 99 entries? If it does not, you may want to change \begin{thebibliography}{999} to either \begin{thebibliography}{99} (if there are between 10 and 99 entries) or \begin{thebibliography}{9} (if there are fewer than 10 entries).
    – Mico
    Oct 29, 2020 at 5:45
  • @Mico, there are fewer than 10 entries. Oct 29, 2020 at 6:49
  • @MadyYuvi, I mean the title of "reference". Oct 29, 2020 at 6:50
  • Why do you want to do that? It is a division heading, just as \section is and I believe that it should have the same impact on the reader as an unnumbered section. Oct 29, 2020 at 18:21

1 Answer 1

1

You wrote,

How to decrease the font size of 'References'? I want to make it 11pt fontsize.

I guess you want 11pt because that's the main document font size, right? If so, you may achieve your formatting goal by loading the etoolbox package and running the instruction

\patchcmd{\thebibliography}{\section*}{\subsubsection*}{}{}

in the preamble.

By default, the header of the bibliography section in the article document class employs the instruction \section*, which creates an unnumbered section-level header which, in turn, employs the \Large relative font size. The command shown above tells LaTeX to use the \subsubsection* command instead, which will employ the \normalsize relative font size which, as you may have guessed by now, works out to be 11pt for the document at hand.

enter image description here

\documentclass[a4paper,oneside,11pt]{article}
\usepackage[hmargin=2.5cm,top=4cm,bottom=2.7cm]{geometry}
\usepackage{amsmath,amssymb}
%%\usepackage{amsfonts} 'amsfonts' is loaded by 'amssymb'
\usepackage{enumitem}
\usepackage{array}
%%\usepackage{mathptmx} 
\usepackage{newtxtext,newtxmath}
\usepackage{changepage}
\usepackage{hyperref}

%% new:
\usepackage{etoolbox}
\patchcmd{\thebibliography}{\section*}{\subsubsection*}{}{}

\begin{document}

\section*{References}        % use "\Large"
\subsection*{References}     % use "\large"
\subsubsection*{References}  % use "\normalsize"
\textbf{References} % <-- use "\normalize" by assumption
\bigskip\hrule

\begin{thebibliography}{9}
    
\bibitem{yyy} A. Author, \emph{Book Title}. Publisher, City, 2nd ed., 2020.
    
\end{thebibliography}
\end{document}
1
  • 1
    Yes, I want 11 pt because the main document font size is 11pt. Thank you very much @Mico. Oct 29, 2020 at 6:52

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