Nguyen, Viet Linh, Thai Sinh Nguyen, and Tam Tran. “Fabrication of a Composite Film Based on the Extracted Aloe Vera Solution and Polyvinyl Alcohol by Freeze–thawing Method”. Science & Technology Development Journal: Natural Sciences 6, no. 2 (June 30, 2022): 2034-2040. Accessed April 24, 2024. http://stdjns.scienceandtechnology.com.vn/index.php/stdjns/article/view/1117.