Effect of Tilt Angle and Azimuth Angle on The Global Irradiance Using The PVsyst Software for Alkhums-Libya. Albahit J. Appl. Sci. 2020;1(1):63-67. تاريخ الوصول سبتمبر 26, 2025. https://albahitjas.com.ly/index.php/albahit/article/view/13