Reddy, A. G. S., K. S. Sastry, and Guru Raghavendra. 2021. “Evaluation of Different WQI Methods for Drinking Water Assessment With a Case Study of Groundwater from Vizianagaram District, AP, India”. Journal of Geography, Environment and Earth Science International 25 (10), 28-46. https://doi.org/10.9734/jgeesi/2021/v25i1030313.