Ngọc, Vũ Thị, Phạm Thị Hạnh, Lê Thị Lan Anh, Nguyễn Tiến Đạt, and Lê Thị Bích Thủy. “Qualification and Quantification of Huperzine a from Huperia Serrata in Da Lat, Lam Dong Province”. Vietnam Journal of Biotechnology 14, no. 3 (September 30, 2016): 473–478. Accessed December 4, 2024. https://vjs.ac.vn/index.php/vjbt/article/view/9861.