Vishwakarma, Smily, and S.K. Sharma. “CATEGORIZATION OF SOME AREAS OF HIMACHAL PRADESH ON THE BASIS OF CLUSTER ANALYSIS OF PHYSICO-CHEMICAL CHARACTERISTICS AND WATER QUALITY INDEX OF GROUNDWATER”. International Journal of Technical Innovation in Modern Engineering & Science 4, no. 9 (September 12, 2018): 458–462. Accessed November 22, 2024. https://ijtimes.com/index.php/ijtimes/article/view/605.