Đặng, Thị Huyền, Thị Trúc Anh Nguyễn, Thị Minh Thu Hoàng, Thị Hồng Nhung Vũ, Hoàng Anh Vĩnh Hà, and Văn Chung Huỳnh. “Optimisation of Polyphenol Extraction from An Xoa Stems (Helicteres Hirsuta Lour.)”. Hue University Journal of Science: Natural Science 135, no. 1C (June 29, 2026): 91-101. Accessed October 16, 2026. https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/8457.