Giang, Vu Thi Thu, 		Thuy Hanh, Pham, AND 		Van Lam, Nguyen.
" Research on the Preparation of Self-nano-emulsifying  Drug Delivery System Containing Gynostemma pentaphyllum Dry Extract for Application in Skin Care Cosmetics" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 39 Number 1 (25 March 2023)