Hao, Do, 		Hue, Nguyen, 		Thuy, Nguyen, 		Ngan, Dang, 		Bich, Dao, 		Anh, Nguyen, 		Huong, Duong, AND 		Tung, Nguyen.
" Study on Chemical Constituentsfrom the Roots  of Panax bipinnatifidius Seem. Collected in Sapa, Laocai" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 33 Number 2 (6 December 2017)