فهرس المقالات Project scope management حرية الوصول المقاله صفحة الملخص نص كامل 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