Ughamba, Kingsley Tochukwu, Nnabueze Darlington Nnaji, Kenneth Ejike Ogbonna, and Chukwudi Anyanwu. 2020. “Selling Points of Sewage Sludge As an Enhancing Agent of Bioremediation of Diesel Oil-Polluted Soil”. International Journal of Environment, Agriculture and Biotechnology 5 (1). https://journal-repository.com/index.php/ijeab/article/view/1668.