Shaterian, Mohsen, Amir Oshnooei, Mahmood Ganjipour, Andishe Akbari, and Marzieh Reisi. 2015. “City Size and Socio-Economic Participation of Citizens: Iranian Case Study”. The International Journal of Humanities & Social Studies 3 (8). http://www.internationaljournalcorner.com/index.php/theijhss/article/view/141110.