Bharti, Pawan Kumar, Pawan Kumar Tyagi, and Vijender Singh. “Assessment of Heavy Metals in the Water of Sahastradhara Hill Stream at Dehradun, India”. International Journal of Environment 3, no. 3 (September 13, 2014): 164–172. Accessed April 24, 2024. https://www.nepjol.info/index.php/IJE/article/view/11076.