C.N ANGAYE, T., C. DAOKORU-OLUKOLE, and J. F.N ABOWEI. “Microbiological Assessment of Municipal Solid Waste Dumpsites in Yenagoa Metropolis, Bayelsa State, Nigeria”. Biotechnological Research, Vol. 4, no. 1, Mar. 2018, pp. 24-33, http://br.biomedpress.org/index.php/br/article/view/763.