List of Articles Linear programming model Open Access Article Abstract Page Full-Text 1 - Estimating the Solution of the Best-Worst Method Non-Linear Programming Model by solving the Mixed Integer Linear Programming Model Solutions Mohammad Reza Dehghani Mehdi Abbasi Open Access Article Abstract Page Full-Text 2 - Portfolio selection by Using Multi Attribute Decision Making based on grey relational analysis and linear programming A. Asghar Anvari Rostami Mahdis Taghavi M. Ebrahim Aghababaei Open Access Article Abstract Page Full-Text 3 - Modelling and Scheduling Lot Streaming Flexible Flow Lines Bahman naderi Mehdi Yazdani Open Access Article Abstract Page Full-Text 4 - Optimal Allocation of Water Using Fuzzy Programming Models Morteza Molaei Javad Hosseinzad Firouzy Open Access Article Abstract Page Full-Text 5 - Competitiveness of Main Crops in Mazandaran Province: Application of Mathematical Programming Model H. Rafiee Gh. Peykani Machiani Zh. Daneshvar Ameri