Dr. Ahmed Salah Eldin Shiba. “A Study of Spontanaous Architecture Environmental Characteristics and Treatments in Hot Dry Regions and Their Re-Application in Contemporary Architecture Using Green Technology”. International Journal of Advanced Science and Technology, Vol. 29, no. 5s, Apr. 2020, pp. 1819 -30, http://sersc.org/journals/index.php/IJAST/article/view/8577.