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• Nafei.Amirhossein A New Approach for Solving Interval Neutrosophic Integer Programming Problems [ Vol.2, Issue 2 - Spring Year 2021]
• Namakshenas.Mohammad Optimistic and Pessimistic Fuzzy Data Envelopment Analysis: Empirical Evidence from Tehran Stock Market [ Vol.2, Issue 2 - Spring Year 2021]
• Nazari.Ali Comparison of the Dependence Structures of Stochastic Copula-DEA Model [ Vol.2, Issue 4 - Autumn Year 2021]