\documentclass[12pt,a4paper,twocolumn]{article}

\usepackage{graphicx}
\usepackage{amsmath} 
\usepackage{makeidx}
\usepackage{breqn}
\usepackage{hyperref}
\usepackage[extrafootnotefeatures]{xepersian}
\usepackage{bidiftnxtra}
\hypersetup{colorlinks=true,
linkcolor=blue,
citecolor=blue
}
\paragraphfootnotes
\settextfont{HM XNiloofar}
\setlatintextfont[Scale=1]{Linux Libertine}
\deflatinfont\titleFontEn[Scale=1.2]{Linux Libertine}
\DefaultMathsDigits

\begin{document}

\bibliographystyle{ieeetr-fa.bst}
\bibliography{myref.bib}
\nocite{*}
\end{document}