H. Al-Joubori, Muna, and Ayad A. A. H. Abd Al-Razaq. “Biotreatment of Oil Wells Drilling Waste in an Agricultural Soil”. Iraqi Journal of Chemical and Petroleum Engineering, vol. 9, no. 2, June 2008, pp. 69-74, https://doi.org/10.31699/IJCPE.2008.2.8.