SANTHI, D.; UMAYORU BHAGAN, V.; LEKSHMANA SARMA, R. Concentration of Fluoride Ion in Surface Soils in Vallioor Union of Tirunelveli District, Tamil Nadu, India . Asian Journal of Chemistry, [S. l.], v. 14, n. 1, p. 177–180, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/21990. Acesso em: 4 jul. 2024.