Hadi Ali M. Studying the Performance of Back–Pass Plain Plate Solar Air Heating Un-Glazed Collector. J. eng. sustain. dev. [Internet]. 2011 Dec. 1 [cited 2025 May 12];15(4):135-54. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1313