Syed Ansar Ali, Amit Kumar Nayak, Kalyan Kumar Sen, and Prabhakar T. “Preparation and Characterization of Vetiver Oil Encapsulated Polymeric Microcapsules for Sedative and Hypnotic Activity”. International Journal of Research in Pharmaceutical Sciences, vol. 10, no. 4, Nov. 2019, pp. 3616-25, https://ijrps.com/home/article/view/3206.