H. Darweesh, Shaima, شيماء, Waleed I. Al-Rijabo, and وليد. “Study of Spatial Variation of Total Solar Radiation Falling on Horizontal Surface in Iraq”. Rafidain Journal of Science 22, no. 8 (June 24, 2025): 119–134. Accessed August 14, 2025. https://rjps.uomosul.edu.iq/index.php/rsci/article/view/12409.