YAWO, Okwet; AKPAN, Ita. Assessment of heavy metals concentration in sediments of Utibete River, Eastern Obolo, Southeastern Nigeria using particle induced X-ray emission (PIXE) technique. Researchers Journal of Science and Technology, [S. l.], v. 1, n. 1, p. 17–36, 2021. Disponível em: https://rejost.com.ng/index.php/home/article/view/4. Acesso em: 21 dec. 2024.