Assessment of Effect of Sewage Intrusion from Septic Tanks into the Consumable Hand Dug Wells in Lagos State, Nigeria. Global Journal of Science Frontier Research, [S. l.], v. 13, n. 1, p. 7–11, 2013. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/103127. Acesso em: 26 oct. 2026.