Le, Quyen, Quynh Nguyen, Phu Dang, Nhi Nguyen, and Quan Tran. “Chemical Constituents and Bioactivity of Gynura Procumbens (Lour.) Merr.”. Science and Technology Development Journal 22, no. 4 (January 24, 2020): 391-399. Accessed March 29, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1725.