ROY, Raj Kumar. Identification of Controlling Factors of Groundwater Chemistry in the Kolkata Metropolitan Area Using Principal Component Analysis (PCA). RESEARCH REVIEW International Journal of Multidisciplinary, [S. l.], v. 11, n. 5, p. 53–82, 2026. DOI: 10.31305/rrijm.2026.v11.n05.008. Disponível em: https://www.rrjournals.com/index.php/rrijm/article/view/222. Acesso em: 27 may. 2026.