الزين قاسم, and حمد لالي امراجع. “An Economical -Technical Comparison of Solar Electrical Water Pumping System Versus Conventional Electrical Water Pumping System for Agricultural Purposes in the Area of ‘Awjila’”. Solar Energy and Sustainable Development Journal 5, no. 1 (June 30, 2016): 30–43. Accessed May 20, 2024. https://jsesd-ojs.csers.ly/ojs/index.php/jsesd/article/view/71.