DIWAKARAN, Diwakaran S; M, Soundarapandian. A Study on Great Dip in Ground Water Level among Various Districts in Tamilnadu. International Journal Of Management And Economics Invention, [S. l.], v. 3, n. 10, p. 1336–1340, 2017. Disponível em: http://www.rajournals.in/index.php/ijmei/article/view/171. Acesso em: 4 may. 2024.