Bourdoucen, H., and A. Gastli. “Analytical Modelling and Simulation of Photovoltaic Panels and Arrays”. The Journal of Engineering Research [TJER] 4, no. 1 (December 1, 2007): 75–81. Accessed October 20, 2021. https://journals.squ.edu.om/index.php/tjer/article/view/30.