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LOGANATHAN*, P. Nitrate Pollution and Fecal Coliform Contamination in Domestic Wells in the Vavuniya District Sri Lanka with Special Reference to Hospital Area. Recent Research in Science and Technology, [S. l.], v. 3, n. 8, 2011. Disponível em: https://www.updatepublishing.com/journal/index.php/rrst/article/view/768. Acesso em: 14 oct. 2025.