Vững, Nguyễn Đăng, Trần Đức Minh, Lương Ngọc Trương, and Phạm Thị Thu Trang. “Knowledge, Attitude and Practice of Hand Washing Among Secondary School Students and Their Associated Factors”. Journal of Medical Research 144, no. 8 (August 26, 2021): 45-57. Accessed July 3, 2024. https://tapchinghiencuuyhoc.vn/index.php/tcncyh/article/view/403.