Almosawi, Dr.Yosif J. Kadhem, and Warqaa A. Kadhem Alshimmary. 2017. “Effect of Air Combustion Preheater on Furnace Efficiency by Using Refinery Simulator”. Journal of Petroleum Research and Studies 7 (3):75-87. https://doi.org/10.52716/jprs.v7i3.161.