“Synthesis and Spectral Studies of Co(II),Ni(II),Zn(II) and Cd(II) Complexes With Ligand 2-[4- Carboxy Methyl Phenyl Azo] -4,5-Diphenyl Imidazole (4CMeI)”. Baghdad Science Journal, vol. 10, no. 2, June 2013, pp. 420-31, https://doi.org/10.21123/bsj.2013.10.2.420-431.