NGUYEN, T. N. DESIGNING AND USING LEARNING SHEETS IN TEACHING GRADE 5 MATH - TOPIC "PERCENTAGES". Hong Duc University Journal of Science, [S. l.], v. 71, n. 12, p. 116-124, 2024. DOI: 10.70117/hdujs.3.2024.694. Disponível em: https://hdujs.edu.vn/index.php/hdujs/article/view/694. Acesso em: 12 feb. 2025.