S. Al - Dabbagh, Mohammad, and Dr. Adnan M. Al Saffawi. “A Study For Refrigerant’s Characteristics to Choose the Optimum For Ejector Refrigeration System”. Al-Rafidain Engineering Journal (AREJ) 19, no. 6 (December 28, 2011): 16–29. Accessed September 8, 2025. https://jamh.uomosul.edu.iq/index.php/arej/article/view/31183.