Adamma, N. C., O. J. Nwabueze, and P. Chukwudi. “Microbial Assessment of Grey Water Samples Treated With Activated Carbon Forms of Selected Agro-Wastes”. Journal of Advances in Biology & Biotechnology, Vol. 23, no. 8, Oct. 2020, pp. 25-35, doi:10.9734/jabb/2020/v23i830171.