Abdul-Karim Mohammed, A.-H., G. Attiya, H. and Abdul Khaliq Khudair, H. (2008) “The Relationships between the Physical and Chemical Properties of Narrow Fractions Distilled From Mixed Kirkuk and Sharki-Baghdad Crude Oils”, Iraqi Journal of Chemical and Petroleum Engineering, 9(2), pp. 1-8. Available at: http://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/432 (Accessed: 29November2019).