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\begin{document}
ارجاع دادن چندتایی \cite{a,b,c,d}
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\renewcommand{\bibname}{مراجع}
\begin{thebibliography}{99} % assumes less than 100 references
\begin{LTRitems}
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\bibitem{a}
S. Ijima,
\bibitem{b}
X. Blase, S. Roche 
\bibitem{c}
R. B. Little,  
\bibitem{d}
R. Saito, 
\end{LTRitems}
\end{thebibliography}
\end{document}