فهرس المقالات Location-allocation problem حرية الوصول المقاله صفحة الملخص نص كامل 1 - Developing a New Bi-Objective Functions Model for a Hierarchical Location-Allocation Problem Using the Queuing Theory and Mathematical Programming Parham Azimi Abulfazl Asadollahi 10.22094/joie.2018.350.0 حرية الوصول المقاله صفحة الملخص نص كامل 2 - A New Hybrid Algorithm to Optimize Stochastic-fuzzy Capacitated Multi-Facility Location-allocation Problem Esmaeil Mehdizadeh Mohammad Reza Tavarroth Vahid Hajipour