Thanh, Nguyen, 		Ket, Nguyen, AND 		Yoeup, Paek.
" Effecting of medium composition on biomass and ginsenoside production in cell suspension culture of Panax vietnamensis  Ha et Grushv" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 23 Number 4 (15 December 2007)