Ebele, Mbachu Augustine, et al. “Evaluation of the Effectiveness of Fungi (Candida Tropicalis and Aspergillus Clavatus) in Bioremediation of Used Engine Oil Contaminated Soil Using Bioaugmentation Technique.” International Journal of Environment, Agriculture and Biotechnology, vol. 3, no. 4, 2018, pp. 1175–82. Crossref, https://doi.org/10.22161/ijeab/3.4.4.