Huynh, Tien Phat, Tuan Dat Truong, Tran Phuong Quach, Ngoc Thuy Vy Dao, Hoang Men Nguyen, and Thi Thu Tram Nguyen. “INVESTIGATION ON CHEMICAL CONSTITUENTS OF THE LICHEN USNEA UNDULATA AND PRELIMINARY APPLICATION IN SUNSCREEN CREAM”. Cantho Journal of Medicine and Pharmacy, no. 61 (July 12, 2023): 378–386. Accessed March 17, 2026. https://tapchi.ctump.edu.vn/index.php/ctump/article/view/729.