Majeed Ali, Obed. “Effect of Storage Heater Shape on Performance of Built -In –Storage Solar Collector Suitable for IRAQ Environment”. Al-Rafidain Engineering Journal (AREJ) 20, no. 2 (April 28, 2012): 1–8. Accessed September 8, 2025. https://jamh.uomosul.edu.iq/index.php/arej/article/view/30701.