Suba Kanmani, Murugan S, and Umadevi P. 2014. “In Vitro Antioxidant Potential of Ethanolic Extract of Hypericum Hookerianum and Its Glycosidic Flavonoid Enriched Extract”. International Journal of Phytomedicine 6 (1):122-31. https://ijp.arjournals.org/index.php/ijp/article/view/310.