A.-I. D. Abiante, J. I. Eze, and C. R. Eze, “Heavy Metal Contamination of Selected Foods from the Oil Producing State of Akwa Ibom in Southern Nigeria”, Pak. J. Nutr., vol. 18, no. 12, pp. 1115–1119, Nov. 2019, doi: 10.3923/pjn.2019.1115.1119.