B. Harsha, K., agirikoppal V. Kavitha, T. R. Swaroop, S. Rangappa, and K. S. Rangappa. “A Green Synthesis of 1,5-Benzodiazepines Using Reusable-Heterogeneous Silica Sulfuric Acid Catalyst under Solvent-Free Conditions and Their Antileukemic Activity”. Asian Journal of Chemistry, Vol. 33, no. 5, Apr. 2021, pp. 1006-12, https://asianpubs.org/index.php/ajchem/article/view/18117.