\documentclass[a4paper, 12pt]{report}
\usepackage{custom}
% VARIABLES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand\cTitle{PROJECT TITLE}
\newcommand\cMembOne{ONE}
\newcommand\cMembTwo{TWO}
\newcommand\cMembThree{THREE}
\newcommand\cMembFour{FOUR}
\newcommand\cMembOneRegNo{PKD19XXXXX}
\newcommand\cMembTwoRegNo{PKD19XXXXX}
\newcommand\cMembThreeRegNo{PKD19XXXXX}
\newcommand\cMembFourRegNo{PKD19\-XXXXX}
\newcommand\cGuide{GUIDE}
\newcommand\cHod{HOD}
\newcommand\cPrincipal{PRINCIPAL}
\newcommand\cCordOne{COORDINATOR-ONE}
\newcommand\cCordTwo{COORDINATOR-TWO}
\newcommand\cMonthAndYear{December 2022}
\begin{document}
\onehalfspacing
% COVER PAGES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\include{covers/_cover1}
\include{covers/_cover2}
\include{covers/mission_vision}
\include{covers/peo_pso}
\include{covers/declaration}
\include{covers/certificate}
\include{covers/table_of_contents}
\pagenumbering{roman}
\include{covers/acknoledgement}
\include{covers/abstract}
\include{covers/list_of_tables}
\include{covers/list_of_figures}
\include{covers/abbreviations}
\include{covers/notations}
% CHAPTERS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\pagenumbering{arabic} % Arabic numbers for contents
\include{chapters/introduction}
\include{chapters/theory}
\include{chapters/results_and_discussion}
\include{chapters/conclusions}
% BIBLIOGRAPHY %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\renewcommand{\bibname}{REFERENCES}
\bibliographystyle{plain}
\renewcommand{\thepage}{}
\bibliography{bib}
% APPENDICES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\addcontentsline{toc}{chapter}{APPENDICES}
\customappendix{appendices/appendix1.tex}
\customappendix{appendices/appendix2.tex}
\addcontentsline{toc}{chapter}{LIST OF PUBLICATIONS}
\end{document}
