Assessment of Groundwater Drinking Sources in Eku and Its Environs, in the Niger-Delta Region of Nigeria. Baghdad Science Journal, Iraq, Baghdad, v. 19, n. 6, p. 1219, 2022. DOI: 10.21123/bsj.2022.6554. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6554.. Acesso em: 4 may. 2024.