فهرس المقالات Sima Balak المقاله 1 - Comparison of the Dependence Structures of Stochastic Copula-DEA Model 10.30495/fomj.2021.1943130.1041 Sima Balak Mohammad Hassan Behzadi Ali Nazari Fuzzy Optimization and Modeling Journal , العدد 5 , السنة 2 , پاییز 2021