H. Husain, Amal. “Solar Water Heater from Plastic Bottles and Beverage Carton”. Journal of Engineering and Sustainable Development 16, no. 2 (June 1, 2012): 34–43. Accessed April 19, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1196.