ALIYU, H.D.; OJO, A.S. Complexes of Cu(II) and Ni(II) Sulphate with Acetone and Acetaldehyde Hydrazones Derived from Valeric Acid and Isovaleric Acid. Asian Journal of Chemistry, [S. l.], v. 24, n. 3, p. 961–963, 2011. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/8689. Acesso em: 2 jul. 2024.