m. yahya, Basher. “Using Spatial Expert Support System to Select Suitable Sites for Rain Water Harvesting”. Al-Rafidain Engineering Journal (AREJ) 21, no. 4 (August 28, 2013): 46–54. Accessed September 7, 2025. https://jamh.uomosul.edu.iq/index.php/arej/article/view/31383.