M. ANIS. “Studies On Groundwater Contamination Of Fluoride In Uttar Pradesh And Contamination Impact Upon Public Health At Agra District”. Elementary Education Online 20, no. 2 (December 15, 2023): 1923–1933. Accessed July 29, 2025. https://ilkogretim-online.org/index.php/pub/article/view/2344.