Massresha, E. et al. 2025. Health Risk Assessment and Levels of Toxic Heavy Metals in Oreochromis niloticusand Clarias gariepinusfrom Alwero and Abay River Basin. Jefore Ethiopian Journal of Applied Sciences. 2, 1 (Mar. 2025), 137–156. DOI:https://doi.org/10.70984/6m5qds39.