Sagvan Qader, V., Mohammed Ali, O. and Idrees Hasan, N. (2023) “An Experimental Comparison Between Fixed and Single-Axis Tracking Photovoltaic Solar Panel Performance: Zakho City as Case Study”, Al-Rafidain Engineering Journal (AREJ), 28(1), pp. 272–279. doi: 10.33899/rengj.2022.136292.1204.