Massresha, E., Zewdu, A., Mateos, H. ., & Lewandowski, P. . (2025). Health Risk Assessment and Levels of Toxic Heavy Metals in Oreochromis niloticus and Clarias gariepinus from Alwero and Abay River Basin. Jefore Ethiopian Journal of Applied Sciences, 2(2), 137-157. https://doi.org/10.70984/6m5qds39