Ikoko I, Osu C, Horsfall M. Contamination and Pollution Studies of Heavy Metals in Sand Filter Media Waste Dumpsite in Yenagoa, Bayelsa State, Nigeria. jasem [Internet]. 2020 May 22 [cited 2026 Sep. 27];24(4):581-8. Available from: https://www.ajol.info/index.php/jasem/article/view/196073