Stephen, A. C., Ogwo, P. A and Mbagwu, C. F. “Soil Properties in the Vicinity of Discharge Spent Motor Oil in Ohiya Automobile Mechanic Village Umuahia, Abia State”. NIPES - Journal of Science and Technology Research 2, no. 4 (November 26, 2020). Accessed October 22, 2024. https://journals.nipes.org/index.php/njstr/article/view/163.