Mullen، Kimberly. "Information on Earth's Water". ngwa.org. National Ground Water Association. مؤرشف من الأصل في 2020-05-14. اطلع عليه بتاريخ 2020-02-26.
Bose, Dr. Sreekanth; R, Dr. Yashoda; Puranik, Dr. Manjunath P (1 Jul 2018). "A review on defluoridation in India". International Journal of Applied Dental Sciences (بالإنجليزية). 4 (3). Archived from the original on 2019-09-08.
web.archive.org
Mullen، Kimberly. "Information on Earth's Water". ngwa.org. National Ground Water Association. مؤرشف من الأصل في 2020-05-14. اطلع عليه بتاريخ 2020-02-26.
Bose, Dr. Sreekanth; R, Dr. Yashoda; Puranik, Dr. Manjunath P (1 Jul 2018). "A review on defluoridation in India". International Journal of Applied Dental Sciences (بالإنجليزية). 4 (3). Archived from the original on 2019-09-08.