HARIKUMARAN NAIR, M.L.; MARIAMMA, A.T. Synthesis and Characterization of Thorium(IV) Complexes of 2,3-dimethyl-1-phenyl-4- (2-hydroxy-5-methyl phenyl azo)-pyrazol-5-one. Asian Journal of Chemistry, [S. l.], v. 18, n. 4, p. 2983–2988, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/20717. Acesso em: 23 jul. 2024.