List of Articles Multi-Objective Model Open Access Article Abstract Page Full-Text 1 - Citrus supply chain network design based on group purchasing mechanism: A case study of Mazandaran province mir saman pishvaee seyed aliasghar ghadiri Mohamad Mahi Paydar Open Access Article Abstract Page Full-Text 2 - Presenting a Multi-Objective Model for the Allocation and Capacity Building of Industrial Wastewater Recycling Centers with the Aim of Minimizing Transportation Costs and Maximizing Recycled Water Production mostafa mahmoodabadi sadegh abedi masoomeh danesh shakib