M. Al-Makhyoul, Z., and D. Ghalib Y.Kahwaji. “VALIDATION OF THE TOTAL RESISTANCE HEAT DISSIPATION MODEL FOR HEAT TRANSMISSION THROUGH ANNULAR FINS”. Al-Rafidain Engineering Journal (AREJ), vol. 14, no. 3, Sept. 2006, pp. 31-42, doi:10.33899/rengj.2006.45305.