Donappa, N., and S.B. Naikar. “Complexes of Copper (II), Cobalt (II) and Nickel (II) With Substituted Benzimidazoles ”. Asian Journal of Chemistry 5, no. 4 (March 30, 2010): 995–1000. Accessed December 5, 2025. https://asianpubs.org/index.php/ajchem/article/view/24965.