Moimaz, S. A. S., L. F. P. dos Santos, N. A. Saliba, and O. Saliba. “Eleven Years of Monitoring Fluoride Content in Public Water Supplies: Methods, Products, and Importance to Public Health”. Bioscience Journal, vol. 33, no. 3, May 2017, pp. 799-08, doi:10.14393/BJ-v33n3-36328.