فهرس المقالات Hossein Sheikhzadeh المقاله 1 - The Impact of Oil Income Fluctuations on the Economy Management System and the Government's Economic Policies in Iran from 2013 to 2020 10.30495/jsm.2024.2000803.1904 Farhad Salasel Hossein Sheikhzadeh Hasan Khodaverdi Journal of System Management , العدد 2 , السنة 10 , بهار 2024