H. AHMAD, H.; A. MOHAMMED, S. Selective Extraction of Zirconium from Various Samples and Subsequent Spectrophotometric Determination with Eriochrome Cyanine R Reagent. Rafidain Journal of Science, [S. l.], v. 20, n. 3, p. 74–83, 2009. DOI: 10.33899/rjs.2009.40231. Disponível em: https://jamh.uomosul.edu.iq/index.php/rsci/article/view/46401. Acesso em: 29 sep. 2025.