D. Al. D.H. Alwan, Dr., Dr. I. W. MaidA, and A. H. Soheel. 2013. “Numerical and Experimental Study of Counter Flow Cooling Tower Performance With Difference Packs Porosity and Configuration”. Al-Rafidain Engineering Journal (AREJ) 21 (6):101-15. https://doi.org/10.33899/rengj.2013.82397.