H. Al-Hiti, A., M. H. Al-Joubori, and A. A. A. Abd Al-Razaq. “Biotreatment Technique to Treat Oil Wells Drilling Waste”. Iraqi Journal of Chemical and Petroleum Engineering, Vol. 8, no. 3, Sept. 2007, pp. 37-41, https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/486.