Okoh Elechi, Dr. Zekieni R. Yelebe, Indiamaowei O. Patrick, Oruabena Bernard, and Ebitei S. Nelson, “Comparative Studies on Modelling and Optimization of Soil Parameters on Crude Oil Contaminated Mangrove and Clay Soils Remediation Using Box-Behnken RSM”, IJASRE, vol. 5, no. 5, pp. 171–182, May 2019.