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Chauhan, A., Verma, S.C., Bhardwaj, S.K., Sharma, U., Gupta, R.K. and Sharma, R. 2016. Impact of cropping systems on physico-chemical characteristics of surface water during different seasons in Shimla region of Himachal Pradesh. Journal of Applied and Natural Science. 8, 1 (Mar. 2016), 173–178. DOI:https://doi.org/10.31018/jans.v8i1.769.