Douglas R, Albert G, Reuben O, Paul O, Hellen N, Boniface G, Obed N, Omondi A, Job O. Assessment of Heavy Metal Concentrations (Cu, Cd, Pb, and Zn) in Wastewater from Gusii Treatment Plant in Kisii County, Kenya. PASJ [Internet]. 2022 Feb. 10 [cited 2025 Feb. 23];2(01):122-38. Available from: https://panafricajournal.com/index.php/home/article/view/11