List of Articles Multi-objective model Open Access Article Abstract Page Full-Text 1 - Fuzzy Programming for Parallel Machines Scheduling: Minimizing Weighted Tardiness/Earliness and Flow Time through Genetic Algorithm Mohammad Asghari Samaneh Nezhadali Open Access Article Abstract Page Full-Text 2 - A multi-objective model for designing a group layout of a dynamic cellular manufacturing system Reza Kia Hossein Shirazi Nikbakhsh Javadian Reza Tavakkoli-Moghaddam Open Access Article Abstract Page Full-Text 3 - Determination Optimal Crop Pattern of Sirjan County Central Part Based on Stability of Water Resources and Environmental عباس Mirzaei gh . Layani حسن Azarm سیامک Jamshidi