Ramadan, A. ., K. . Mufth, A.-R. . Al-Naaji, A.-B. . Al-Soul, A. Essnid, B. . Sawed, and B. . Sawed. “Experimental Investigation of the Thrmal Performance of a Solar Air Heater”. Solar Energy and Sustainable Development Journal, vol. 9, no. 2, Dec. 2020, pp. 46-62, doi:10.51646/jsesd.v9i2.13.