Statistical Analysis for the Presence of pH Content of Ground Water at Different Locations of Industrial area at Ghazipur in India. Global Journal of Science Frontier Research, [S. l.], v. 13, n. 40, p. 55–59, 2013. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/103244. Acesso em: 25 oct. 2026.