Cường, L.C.V., Phan Thị Diễm, T., Trần Phương, H., Trần, T.T.T. and Tôn Thất, H. Đạt 2025. Extraction, enrichment flavonoid, and evaluation of antioxidant activity of Passiflora foetida extract. Hue University Journal of Science: Natural Science. 134, 1C (Jun. 2025). DOI:https://doi.org/10.26459/hueunijns.v134i1C.7753.