Hossain, M.B. et al. 2013. 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. 25, 2 (May 2013), 139–145. DOI:https://doi.org/10.3329/jbcs.v25i2.15066.