Thi Hoang Vi N. 5–6-YEAR-OLD CHILDREN’S MATHEMATICAL MODELING SKILLS IN PARTICIPATING MATHEMATICAL MODELING ACTIVITIES. HNUE JoES [Internet]. 2024 Oct. 2 [cited 2026 Jul. 31];69(4A):208-17. Available from: https://hnuejs.edu.vn/es/article/view/538