Gopal, Krishna, Hari Om Verma, and Suyash Tripathi. 2017. “Water Quality Monitoring of Sur Sarovar (Keetham) Lake, Agra (Uttar Pradesh)”. Journal of Ecophysiology and Occupational Health 15 (3-4):95-103. https://doi.org/10.18311/jeoh/2015/14498.