“Assessment of Effect of Sewage Intrusion from Septic Tanks into the Consumable Hand Dug Wells in Lagos State, Nigeria”, GJSFR, vol. 13, no. 1, pp. 7–11, Jan. 2013, Accessed: Oct. 26, 2026. [Online]. Available: https://journalofscience.org/index.php/GJSFR/article/view/103127