Bamnela, R., K. Ahirwar, M., & Shrivastava, S. (2010). Synthesis, Characterization and Biological Activity Studies of Some N-Mannich Bases of 1-Substituted methyl-2-(substituted phenyl)benzimidazoles. Asian Journal of Chemistry, 23(4), 1719–1722. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/10229