“Tilt Angle of Solar Panels for Best Winter, Summer and Year-Round Performances for Different Regions of the World”. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 31, no. 2 (June 30, 2023): 296–308. Accessed May 3, 2025. https://www.journalofbabylon.com/index.php/JUBPAS/article/view/4691.