Bruce-Agbogidi, Rhoda Diepreye. “Concentrations of Some Heavy Metals in Tilapia (sarotherodon Melanotheron) from Ekerekana Creek in the Upper Bonny Estuary”. Faculty of Natural and Applied Sciences Journal of Scientific Innovations , vol. 3, no. 3, Sept. 2022, pp. 69-76, https://fnasjournals.com/index.php/FNAS-JSI/article/view/84.