Thi Gam, Do, Ha Viet Hai, Chu Hoang Ha, & Pham Bich Ngoc. " Investigation of some chemical characteristics and antioxidant effects of Flavonoid compounds extracted from the species of Anoectochilus in Vietnam." VNU Journal of Science: Natural Sciences and Technology [Online], 33.1S (2017): n. pag. Web. 3 May. 2024