HOSSAIN, M.; ISLAM, M.; ISLAM, M.; SALAM, M.; YOUSUF, M. Synthesis And Characterization Of Mixed Ligand Complexes Of Co(Ii) And Fe(Iii) Ions With Maleic Acid And Heterocyclic Amines. Journal of the Bangladesh Chemical Society, v. 25, n. 2, p. 139-145, 23 maio 2013.