List of Articles Chains Open Access Article Abstract Page Full-Text 1 - Evaluating Efficiency of Forest-Trees Felling Motor-Manual Groups Using Data Envelopment Analysis Method in West of Mazandaran Province Morteza Madanipour Kermanshahi Leila Karamali Open Access Article Abstract Page Full-Text 2 - Abulfazl al-Baghdādī: the Unknown Successor of Ahmad Ghazālī انسیه شیخسفلی شهرام پازوکی Open Access Article Abstract Page Full-Text 3 - عملگرهای بعضی از گرافها برای شاخصهای زاگرب جهشی نسرین دهگردی رعنا خوئیلر مرضیه سرودی Open Access Article Abstract Page Full-Text 4 - Investigation of pollution output in felling by chainsaw Majid Lotfalian Naghimeh Badraghi Hamed Naghavi Open Access Article Abstract Page Full-Text 5 - Evaluation of heavy metal accumulation in aquatic species (carp, salmon, trout, barred mackerel fishes and, marine and fresh shrimps) Zahra Khoshdouni farahani Open Access Article Abstract Page Full-Text 6 - A New Model to Analyze the Efficiency of a Multilevel Drug Supply Network for Hospitals Mohammadhossein Darvish Motevalli Maryam Ebrahimi 10.30495/jsm.2021.1929000.1470 Open Access Article Abstract Page Full-Text 7 - Selection of suitable extraction method for Mahallat travertine mines using Analytical Hierarchy Process (AHP) Saeed Dehghan Ghasem Sattari Hamed Boustanzar Mohammad- Ali Aliabadi Open Access Article Abstract Page Full-Text 8 - Optimizing Inventory Management Costs in Supply Chains by Determining Safety Stock Placement Abdollah Arasteh 10.22094/joie.2021.1890937.1719 Open Access Article Abstract Page Full-Text 9 - Strategies of Knowledge and Customer Relationship Management Toraj Mojibi Somayeh Hosseinzadeh Open Access Article Abstract Page Full-Text 10 - A Recursive Formula for the Number of Fuzzy Subgroups of Finite Cyclic Groups Mahdi Imanparast Hamid Darabi Open Access Article Abstract Page Full-Text 11 - A Review of Bush Encroachment in Namibia: From a Problem to an Opportunity? Rosemary Shikangalah Benjamin Mapani