AMAKIRI, Comfort Mina; IMAFIDOR, Hellen Orisaghe; WOKOMA, Okorinama Abarinkia Francis. Spatial and temporal variation of some heavy metals and total hydrocarbon content of soils from Okrika, Rivers State, Nigeria . Faculty of Natural and Applied Sciences Journal of Scientific Innovations , Port Harcourt, Nigeria, v. 4, n. 1, p. 1–7, 2023. Disponível em: https://fnasjournals.com/index.php/FNAS-JSI/article/view/110. Acesso em: 3 apr. 2025.