1. Abioye, P. O., Aziz, A. A., & Agamuthu, P. (2010). Enhanced biodegradation of used engine oil in soil amended with organic wastes. Water, Air, & Soil Pollution, 209(1), 173–179.
2. Abdulyekeen, K. A., Muhammad, I. M., Giwa, S. O., & Abdulsalam, S. (2016). Bioremediation of used motor oil contaminated soil using elephant and horse dung as stimulants. IOSR Journal of Environmental Science Toxicology and Food Technology, 10(12), 73–78.
3. Abulude, F. O., Couple, A. A., Dafiewhare, B. H., & Oyeneye, O. O. (2003). Compositional evaluation of livestock dung fed to pigs. Journal of the. Sustropics Tropical Agricultural Research, 6, 33–36.
4. Adebusoye, S. A., Ilori, M. O., Amund, O. O., Teniola, O. D., & Olatope, S. O. (2007). Microbial degradation of petroleum hydrocarbons in a polluted tropical stream. World Journal of Microbiology and Biotechnology, 23(8), 1149–1159.
5. Agarry, S. E., Owabor, C. N., & Yusuf, R. O. (2010). Bioremediation of soil artificially contaminated with petroleum hydrocarbon oil mixtures: Evaluation of the use of animal manure and chemical fertilizer. Bioremediation Journal, 14(4), 189–195.