ابراهيممصطفى, عبد الرحمنخنساء, and عرنوصحيدر. “Center of Urban and Regional Planning for Postgraduate Studies - University of Baghdad”. Journal of Economics and Administrative Sciences 23, no. 96 (April 1, 2017): 66. Accessed August 18, 2021. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/355.