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• Jafarigorzin.Sorena Malmquist Productivity Index Based on Means of Weights for Ranking of Decision Making Units in Data Envelopment Analysis [ Vol.9, Issue 2 - Spring Year 2021]
• Jafarigorzin.Sorena NEW METHODS BASED ON STABILITY VERSUS CHANGES FOR EFFICIENT DECISION MAKING UNITS IN DATA ENVELOPMENT ANALYSIS [ Vol.9, Issue 1 - Winter Year 2021]