Hieu, Le Trung, Le Lam Son, Nguyen Minh Nhung, Ho Xuan Anh Vu, and Tran Thi Anh Thi. “Determination of Luteolin from Extracts of Helicteres Hirsuta by HPLC”. Hue University Journal of Science: Natural Science 128, no. 1B (July 9, 2019): 43-47. Accessed November 15, 2024. http://222.255.146.83/index.php/hujos-ns/article/view/5195.