فهرس المقالات Mohammad Reza khosravi المقاله 1 - Comparison of the Efficiency of Power Transmission Companies in the Electric Power Industry of Iran Applying Conventional and Network Data Envelopment Analysis Methods Kambiz Shahroodi Mohammad Reza Khosravi Iranian Journal of Optimization , العدد 5 , السنة 9 , بهار 2017