R. AHMAD, N.; K. OMAR, F. Indirect Colorimetric Estimation of Fluoride Ion in Water and Pharmaceutical Preparation Samples. Rafidain Journal of Science, [S. l.], v. 28, n. 2, p. 84–89, 2019. DOI: 10.33899/rjs.2019.159968. Disponível em: https://edusj.uomosul.edu.iq/index.php/rsci/article/view/46889. Acesso em: 10 sep. 2025.