CHARACTERIZATION OF BIS-SALICYLALDEHYDE O-PHENYLENEDIAMINE SCHIFF BASE AND ITS DY(III), GD(III), ND(III) AND SM(III) LANTHANOIDS COMPLEXES. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 7, n. 1, p. 19–23, 2023. DOI: 10.33003/fjs-2023-0701-1226. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1226. Acesso em: 3 sep. 2025.