Han LNG, Hanh LTM, Huy HH, Hoa PTN, Hien NK, Quang DT. Research on production of some natural food colorings. hueuni-jns [Internet]. 2018Dec.5 [cited 2024Nov.15];127(1D):23-36. Available from: http://222.255.146.83/index.php/hujos-ns/article/view/5042