Nguyen, Phuong Anh, Thi Khanh Hao Nguyen, and Thuan Quy Nguyen. “Life Value Education for 5-Grade Students at Elementary Schools in Cao Lanh City, Dong Thap Province”. Dong Thap University Journal of Science, no. 39 (August 25, 2019): 18–25. Accessed August 11, 2026. https://dthujs.vn/index.php/dthujs/article/view/316.