Upadhyay, Dr. B.D., Dr. Pramod Kumar, and Shiv Kumar Upadhyay. 2021. “Determination of Physico-Chemical Parameters of Ground Water at Hathras City in Winter”. International Journal of Multidisciplinary Research Education Analysis and Development- IJMREAD, April, 6-19. https://ijmread.com/index.php/ijmread/article/view/13.