K. Abdul Sada, Ghanim, M. N. Hamid, and Arkan F. Said. “The Effect of Increasing Sub-Cooling on Air-Cooled A C System’s Capacity”. Journal of Engineering and Sustainable Development 13, no. 1 (March 1, 2009): 58–72. Accessed May 6, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1529.