فهرس المقالات Yousef Badraghi المقاله 1 - Improving discrimination power based on reducing dispersion of weights in data envelopment analysis 10.30495/jiei.2023.1938148.1153 Yousef Badraghi Shokrollah Ziari Naghi Shoja Amir Gholam Abri Journal of Industrial Engineering International , العدد 2 , السنة 18 , بهار 2022