محمد الأمين الشريف و محمد إبراهيم علوه. “Comparison of the Values Calculated in the Mathematical Models Used to Estimate the Amount of Solar Radiation Falling on a Horizontal Surface With the Measured Values of the City of Sabha”. Journal of Pure & Applied Sciences 17, no. 1 (July 30, 2018). Accessed May 19, 2024. https://sebhau.edu.ly/journal/jopas/article/view/469.