Hashem Hamdon, Wael, Mahmoud U. Jasim, and Majid S. M. Al-Hafidh. 2022. “The Use of Solar Water Heaters in Iraq An Economic Study”. Al-Rafidain Engineering Journal (AREJ) 27 (1):56-63. https://doi.org/10.33899/rengj.2021.131217.1129.