Anbazhagan, Siddan, and Arumugam Jothibasu. “Modeling Water Quality Index to Assess Shallow Groundwater Quality for Sustainable Utilization in Southern India”. International Journal of Advanced Geosciences, vol. 2, no. 2, Sept. 2014, pp. 122-9, https://doi.org/10.14419/ijag.v2i2.3285.