Okey-Wokeh, C. G. and Okechukwu, K. W. (2022) “Determination of heavy metal levels in surface water and sediment of Mini-Ezi Stream, Elele-Alimini, Rivers State, Nigeria”, African Journal of Pure and Applied Sciences. Nairobi, Kenya, 3(1), pp. 136–143. doi: 10.33886/ajpas.v3i1.259.