\documentclass[a4paper,12pt]{report}
\usepackage{graphicx} % inserting images
\usepackage{hyperref} % PDF links
\usepackage{setspace} % for switching between double/single space in document
\usepackage{fancyhdr} % package for changing Headings style
% setting the margins of page
\usepackage[top=3cm,right=3cm,bottom=2.5cm,left=2.5cm]{geometry}                 
\usepackage{xepersian}

% commands related to XePersian package
\settextfont{Tahoma}
\setdigitfont{XB Zar}
\setlatintextfont{Times New Roman}

\begin{document}

\chapter{مقدمه}
\label{ch:int}


%\bibliographystyle{plain}
\renewcommand{\bibname}{\hfill\rl{مراجع}}

%\singlespacing
\input{refrences.tex}


\end{document}