Asmaa Omar Al-Sayed Radwan, Ismat Ashour Ahmed Abu Al-Ela, Imam Abdullah Aliwa. “Studying the "Development" Concept to Determine the Urban Size of the New Western Sahara Urban Agglomerations ”. Design Engineering (June 22, 2021): 1987 - 2022. Accessed May 2, 2024. http://www.thedesignengineering.com/index.php/DE/article/view/2206.