List of Articles سطح مطلوب ریسک Open Access Article Abstract Page Full-Text 1 - Determining Factors Affecting Optimal Risk Level, Optimal Capital Structure and Efficiency in Iranian Banks (Delphi-Fuzzy Approach) میرحمید سادات سلماسی ایمان داداشی حمیدرضا غلام نیاروشن 10.30495/fed.2021.687918 Open Access Article Abstract Page Full-Text 2 - Determining of optimal risk level and optimal structure of capital based on logarithmic model of Border Operational Efficiency in Banks mir hamid sadat salmasi iman dadashi hasmidreza gholamnia roshan