Gowri, S. ., and S. L. . Gaonkar. “A Review on Solvent-Free Microwave Assisted Condensation Reactions”. UPI Journal of Chemical and Life Sciences, vol. 1, no. 1, Dec. 2021, pp. 45-48, https://uniquepubinternational.com/journals/index.php/jcls/article/view/44.