Raza, K. B., S. M. M. Raza, and W. A. Ansari. “EFFECT OF SOLAR-TERRESTRIAL PHENOMENA ON SOLAR CELL’S EFFICIENCY”. The Nucleus 49, no. 3 (July 19, 2012): 155–164. Accessed November 22, 2024. http://thenucleuspak.org.pk/index.php/Nucleus/article/view/790.