Hadi, J.S. et al. 2017. Synthesis, spectral characterization, thermal analysis and DFT computational studies of 2-(1H-indole-3-yl)-5-methyl-1H-benzimidazole and their Cu(II), Zn(II) and Cd(II) complexes. European Journal of Chemistry. 8, 3 (Sep. 2017), 252–257. DOI:https://doi.org/10.5155/eurjchem.8.3.252-257.1598.