فهرس المقالات Crowdfunder حرية الوصول المقاله صفحة الملخص نص كامل 1 - A system Dynamics Approach to Designing a Crowdfunding Model in Technological Entrepreneurship Ecosystem with a Focus on Technology Incubator Centers Mehran Saeidi Aghdam Akbar Alamtabriz Asghar Sarafizadeh Qazvini Hessam Zandhessami 10.22094/joie.2019.582524.1618