فهرس المقالات Farhad Khazaeli المقاله 1 - Combination of Data Envelopment Analysis and Non-Linear Programming: A Novel Hybrid for Optimizing the Allocation of the Fixed-Cost in the Project Portfolio Farhad Khazaeli Hosein Arman Mohammadreza Zare International Journal of Data Envelopment Analysis , العدد 5 , السنة 8 , پاییز 2020