Karfoul, Rizek. “The Calculation and the Analysis of the Quantity of the Total Solar Radiation Incident on Tilted Surface on a High Region above Sea Level”. Latakia University Journal -Basic Sciences Series 41, no. 4 (September 9, 2019). Accessed April 11, 2025. https://journal.tishreen.edu.sy/index.php/bassnc/article/view/8995.