فهرس المقالات Sahbnam Rzavyan المقاله 1 - Efficiency Decomposition in Multi-Stage Network with Inputs and Desirable and Undesirable Outputs in Data Envelopment Analysis 10.30495/ijdea.2023.74256.1199 Fatemeh Saeedi Aval Noughabi Najmeh Malekmohammadi Shabnam Razavyan International Journal of Data Envelopment Analysis , العدد 1 , السنة 11 , زمستان 2023 المقاله 2 - Outputs Estimation and Efficiency Improvement of Two-Stage Network Systems Zahra Shiri Daryani Sahbnam Rzavyan International Journal of Data Envelopment Analysis , العدد 2 , السنة 12 , بهار 2024