43. RESULTS OF INTERVENTION MANAGEMENT ON CLASSROOM HYGIENE IN SOME PRIMARY SCHOOLS IN THE MEKONG DELTA, PERIOD 2021 - 2022. (2024). Vietnam Journal of Community Medicine, 65(CĐ 8 - Trường ĐH Nguyễn Tất Thành). https://doi.org/10.52163/yhc.v65iCD8.1499