Luu TLA, Nguyen NT, Nguyen TTM, Vo TS. Study of a Process for the Extraction of a Betacyanin-Based Nature Colouring from Viet Nam Red Dragon. old [Internet]. 2019 Jan. 15 [cited 2025 Aug. 2];(132):72-5. Available from: https://jst.vn/index.php/old/article/view/689