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  11. R. Pal, R.K. Dubey, S.K. Dubey, A.K. Singh, T.C. Sharma, Assessment of heavy metal pollution of Yamuna water in Mathura region through index analysis approach, Int. J. Chem. Stud., 5 (2017) 1286–1289.
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  34. A. Gupta, R. Singh, P. Singh, R. Dobhal, Heavy metals in drinking water sources of Dehradun, using water quality indices, Anal. Chem. Lett., 7 (2017) 509–519.