Bogale, B., and A. Alemayehu2. “Optimal Design of a Standalone Photovoltaic Power Supply System for Air Conditioning Application at Samara University As an Alternative to Diesel Generator Source”. Science, Technology and Arts Research Journal, vol. 1, no. 2, June 2012, pp. 65-71, https://journals.wgu.edu.et/index.php/star/article/view/46.