Aigbodion, A.I., O.N. Ogbebor, E.U. Ikhuoria, S.O. Omorogbe, and M. Maliki. “Microbial Population of Palm Oil Mill Effluent (POME) and Efficiency of Selected Isolates in Biogas Production”. Journal of Plantation Crops 42, no. 2 (April 11, 2014): 223–227. Accessed September 23, 2025. https://www.updatepublishing.com/journal/index.php/JPC/article/view/5604.