K.RAJASEKAR; T.RAMACHANDRAMOORTHY. SYNTHESIS, SPECTRAL CHARACTERIZATION AND BIOLOGICAL ACTIVITIES OF Cr(III), Co(II), Ni(II) AND Cd(II) COMPLEXES WITH 4-AMINOANTIPYRINE AND THIOCYANATE ION AS LIGANDS. International Journal of Pharma and Bio Sciences, [S. l.], v. 4, n. 2, p. 271–276, 2013. Disponível em: https://ijpbs.net/index.php/journal/article/view/2170. Acesso em: 3 sep. 2026.