OKWELLE, Peace Lawrence; MARCUS, Abiye Clement. Heavy Metal Concentrations in Pumpkin Leaf, Water Leaf, and Soil from Selected Dumpsites in Port Harcourt Metropolis, Nigeria. Faculty of Natural and Applied Sciences Journal of Scientific Innovations , Port Harcourt, Nigeria, v. 6, n. 3, p. 96–105, 2025. DOI: 10.63561/fnas-jsi.v6i3.956. Disponível em: https://fnasjournals.com/index.php/FNAS-JSI/article/view/956. Acesso em: 6 oct. 2025.