Yaseen. H. Mahmood, Faris S. Atallah, and Ali F. Youssef. “Studying the Weather Condition Affecting on Solar Panel Efficiency”. Tikrit Journal of Pure Science 25, no. 3 (March 17, 2020): 98–102. Accessed June 18, 2025. https://tjpsj.org/index.php/tjps/article/view/255.