MULTIVARIATE STATISTICAL ANALYSIS OF WATER QUALITY OF WATER RESOURCES OF RISHIKESH BY USING WATER QUALITY INDEX TECHNIQUE. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 10, p. 1267–1276, 2022. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/10779. Acesso em: 12 aug. 2026.