فهرس المقالات Hamidreza Babaie المقاله 1 - A Bounded Additive Model for Efficiency Evaluation in Two-Stage Production Systems With Negative Data Hamidreza Babaei Asil Reza Kazemi Matin Mohsen Khounsiavash Zohreh Moghaddas Iranian Journal of Optimization , العدد 1 , السنة 14 , زمستان 2022