Nguyễn Thị P, Le TTH, Nong TMA, et al. KNOWLEDGE AND PRACTICES OF ORAL CARE OF STUDENTS IN GRADE 4 AND 5 OF NGUYEN DU PRIMARY SCHOOL, HA DONG, HANOI IN 2025. JSTLU-A. 2026;1(A5). Accessed May 8, 2026. https://science.thanglong.edu.vn/index.php/vola/article/view/312