Grewal, A. S., K. Kumar, S. Redhu, and S. Bhardwaj. “MICROWAVE ASSISTED SYNTHESIS: A GREEN CHEMISTRY APPROACH ”. International Research Journal of Pharmaceutical and Applied Sciences, Vol. 3, no. 5, Oct. 2013, pp. 278-85, https://scienztech.org/index.php/irjpas/article/view/567.