فهرس المقالات Ibrahim Jafari Sangari المقاله 1 - Design of a Regional Entrepreneurship Ecosystem Model in Iran 20.1001.1.23222301.2019.5.2.2.5 Ibrahim Jafari Sangari Seyyed Mehdi Alvani Morteza Mousakhani Ali Davari Mohsen Khoonsiavash Journal of System Management , العدد 2 , السنة 5 , بهار 2019