Thi Gam, Do, 		Viet Hai, Ha, 		Hoang Ha, Chu, AND 		Bich Ngoc, Pham.
" Investigation of some chemical characteristics and antioxidant effects of Flavonoid compounds extracted from the species of Anoectochilus in Vietnam" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 33 Number 1S (10 October 2017)