Nasir, Z.J., S.S.D. Mohammed, G. Mangse, M. Babasaje, and H.L. Abubakar. 2022. “Performance of Cocopeat and Ash As a Biofilter Used in Treatment of Landfill Leachate”. Science World Journal 16 (3):341-48. https://doi.org/10.4314/swj.v16i3.