Sushila. Assessing Groundwater Quality in Prayagraj City: Spatial Patterns of pH, Hardness, TDS and Major Ions. Stallion J. Multidiscip. Assoc. Res. Stud. [Internet]. 2026 Oct. 1 [cited 2026 Oct. 10];5(5):11-8. Available from: https://www.sjmars.com/index.php/sjmars/article/view/410