“Swertiamarin Isolation From The Herbal Plant Enicostemma Littorale Blume Using Flash Chromatography – A Straightforward Approach”. International Journal of Food and Nutritional Sciences, vol. 11, no. Special Issue 3, Jan. 2022, pp. 4230-42, https://www.ijfans.org/index.php/Journal/article/view/9339.