T. DAOOD, L.; لمى; H. AHMED, H.; حنان; M. OMAR, K.; خالدة. Spectrophotometric Determination of Yttrium with Pyrocatechol Violet Reagent – Application to Water. Rafidain Journal of Science, [S. l.], v. 21, n. 6, p. 18–30, 2025. DOI: 10.33899/rjs.2010.6938. Disponível em: https://rjps.uomosul.edu.iq/index.php/rsci/article/view/13038. Acesso em: 13 aug. 2025.