\documentclass[a4paper, 12pt, oneside]{book}
\setcounter{tocdepth}{3}
\setcounter{secnumdepth}{3}
\usepackage{fontspec}
\setmainfont{Times New Roman}
\usepackage[style = authoryear]{biblatex}
\addbibresource{references.bib}
\usepackage{setspace}
\doublespace
\usepackage{lipsum}
\usepackage{graphicx}
\graphicspath{{figures/}}
\usepackage{booktabs}
\begin{document}
\include{cover}
\include{title}
\include{certificate}
\pagenumbering{roman}
\include{abstract}
\include{acknowledgements}
\tableofcontents
\listoffigures
\listoftables
\cleardoublepage
\pagenumbering{arabic}
\include{chapters/introduction}
\include{chapters/conclusion}
\include{references}
\include{appendices}
\end{document}
