Gupta A, Singh R, Singh P, Dobhal R. Evaluation of Ground Drinking Water Sources of Haridwar Using Heavy Metal Pollution Index. ajc [Internet]. 2020 Oct. 28 [cited 2024 Nov. 25];32(11):2873-9. Available from: https://asianpubs.org/index.php/ajchem/article/view/32_11_25