Nha, Tran, Dao Khanh Tuyen, Tran Thien Phu, and Nguyen Thanh Tram. “Polyvinyl Alcohol/Chitosan/Gelatin Hydrogel Incorporated With Betel Leaves for Enhanced Wound Care Management”. VNUHCM Journal of Engineering and Technology 8, no. 2 (June 30, 2025): 2548-2557. Accessed September 1, 2025. http://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/1423.