\documentclass[openleft,12pt,a4paper]{book}
\usepackage{appendix}
\usepackage{tocbibind}
\usepackage[total={14cm,22cm},centering,includehead=true]{geometry}
\usepackage{cool,caption,graphicx,subfigure,tikz,multicol}
\usepackage{appendix}
\usepackage{tocbibind}
\usepackage{xepersian}
\renewcommand{\bibname}{مراجع}
\settextfont[Scale=1]{Yas}
\makeatletter
\renewenvironment{thebibliography}[1]
     {\chapter*{\bibname}%
      \@mkboth{\MakeUppercase\bibname}{\MakeUppercase\bibname}%
      \if@RTL\if@LTRbibitems\@RTLfalse\else\fi\else\if@RTLbibitems\@RTLtrue\else\fi\fi
      \list{\@biblabel{\rl{\@arabic\c@enumiv}}}%
           {\settowidth\labelwidth{\@biblabel{#1}}%
            \leftmargin\labelwidth
            \advance\leftmargin\labelsep
            \@openbib@code
            \usecounter{enumiv}%
            \let\p@enumiv\@empty
            \renewcommand\theenumiv{\@arabic\c@enumiv}}%
      \sloppy
      \clubpenalty4000
      \@clubpenalty \clubpenalty
      \widowpenalty4000%
      \sfcode`\.\@m}
     {\def\@noitemerr
       {\@latex@warning{Empty `thebibliography' environment}}%
      \endlist}
\makeatother
\begin{document}
\begin{thebibliography}{99}
\begin{LTRitems}
\resetlatinfont
\bibitem{Arnold}
Arnold, L. (1973) \emph{Stochastische Differentialgleichungen. Theorie und Anwendungen}. R. Oldenbourg Verlag, M\"{u}nchen, Wien. [129]
\bibitem{Ash} 
Ash, R.B. and Gardner, M.F. (1975) \emph{Topics in Stochastic Processes}. 
Academic Press, New York. [33]
\bibitem{Bachelier}Bachelier, L. (1900) Th\'{e}orie de la sp\'{e}culation.\emph{Ann. Sci. \'{E}cole Norm Sup}. {\bf{III}-17}, 21-86. Translated in: Cootner, P.H. (Ed.)(1964) The Random Character of Stock Market Prices, pp. 17-78. MIT Press, Cambridge, Mass. [33,42,175]
\end{LTRitems}
\end{thebibliography}
\end{document}