\documentclass[12pt, a4paper]{article}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{geometry}
\usepackage{setspace}
\usepackage{tocloft} % For customizing the Table of Contents
\usepackage{lipsum}
\usepackage{mathptmx}
\usepackage[utf8x]{inputenc}
\usepackage{hyperref}
\usepackage{apacite}
\usepackage{colortbl} % For coloring table cells
\usepackage{xcolor}
\usepackage{multicol}
\usepackage{multirow}
\usepackage{booktabs} % For professional tables
\usepackage{array} % Extends table capabilities
\usepackage{tabularx} % Tables with automatic width adjustment
\usepackage{caption} % Customize table captions
\usepackage{enumitem}
\usepackage{float}
\onehalfspacing
\geometry{margin=1in, a4paper}
\fontsize{14pt}{12pt}\selectfont \title{Advanced Study of Wireless Electricity: Impacts on Himalayan Region of Nepal}
\renewcommand{\arraystretch}{1.5}
\author{}
\date{}
\begin{document}
% Title Page
\maketitle
\input{cover}
\thispagestyle{empty}
\newpage
% Abstract
\begin{abstract}
\input{abstract}
\newline
\textbf{Keywords:} Wireless, Himalayan, Electricity, Advanced Study
\end{abstract}
\newpage
% Table of Contents
\tableofcontents
\newpage
\renewcommand{\arraystretch}{1.5}
% Introduction
\section{Introduction}
\subsection{Background}
\input{introduction}
\subsection{Research Objectives}
\input{research_objectives}
\subsection{Research Questions}
\input{research_questions}
\section{Literature Review}
\input{literature_review}
\section{Research Gap}
\input{research_gap}
\section{Foundational Work}
\input{foundational_work}
\section{Materials and Methods}
\input{materials and mehod }
\section{Expected Result}
\input{expected result}
\section{Limitation/Delimitation}
\input{limitation and delimitation}
\section{Ethical Issue}
\input{ethical issue}
\section{Gantt Chart}
\input{gantt chart}
\section{Budget Estimate}
\input{budget estimate}
\section{National Priority}
\input{national priority}
\section{Research Group Members}
\input{group details}
\bibliographystyle{apacite}
\renewcommand{\arraystretch}{1.5}
\bibliography{references} % Replace with your .bib file name
\end{document}