- Achuba, Fidelis Ifeakachuku., et all. "The effect of cassava effluent and empty oil palm fruit bunch on remediation of petroleum polluted soil and crop production in the tropics: A review." International Journal of Recycling of Organic Waste in Agriculture, vol. 9, no. 3, pp. 309 - 321, https://doi.org/10.30486/ijrowa.2020.1892843.1036