Vyas, P.C., and Navneet Kaur. “Synthesis, Characterisation, Antifungal and Antibacterial Studied of Nickel(II) and Silver(I) Complexes of Tridentate Bis Benzimidazoles”. Asian Journal of Chemistry, vol. 9, no. 2, Mar. 2010, pp. 208-12, https://asianpubs.org/index.php/ajchem/article/view/23839.