Hadi Ali, Mohammed. “Studying the Performance of Back–Pass Plain Plate Solar Air Heating Un-Glazed Collector”. Journal of Engineering and Sustainable Development 15, no. 4 (December 1, 2011): 135–154. Accessed May 12, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1313.