“Chemical and Physical Analysis of Drinking Water from Shallow Wells and Bore Holes in Thovalai and Vilavancode Taluk”, GJSFR, vol. 15, no. B1, pp. 1–8, Jan. 2015, Accessed: Feb. 05, 2026. [Online]. Available: https://www.journalofscience.org/index.php/GJSFR/article/view/1480