[1] Onwubiko, C.C. et al. 2020. Heavy Metals Pollution Index in African River Prawn (Macro brachium Vollenhoven Ii) collected from Calabar River, Nigeria. International Journal of Environment, Agriculture and Biotechnology. 5, 3 (2020), 647–653. DOI:https://doi.org/10.22161/ijeab.53.18.