فهرس المقالات reza tehrani المقاله 1 - Modeling Optimal Capital Structure Via System Dynamics Approach 20.1001.1.23222301.2021.7.1.2.7 10.30495/jsm.2021.1919718.1426 Hamid Abdoli Reza Tehrani Amen Khadivar Journal of System Management , العدد 1 , السنة 7 , زمستان 2021