Hashim Falih, A. (2018) “EFFECT OF USING R-22, R404 AND R-407C ON PERFORMANCE OF AN AIR-CONDITIONING SYSTEM”, Journal of Engineering and Sustainable Development, 22(5), pp. 200–214. Available at: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/411 (Accessed: 19 April 2025).