Omoyajowo, K. O., K. L. Njoku, O. O. Babalola, and O. A. Adenekan. “Nutritional Composition and Heavy Metal Content of Selected Fruits in Nigeria”. Journal of Agriculture and Environment for International Development (JAEID), vol. 111, no. 1, June 2017, pp. 123-39, doi:10.12895/jaeid.20171.560.