Simanjuntak VHM. THE EFFECT OF HEALTH PROMOTION USING AUDIO-VISUAL MEDIA ON HAND WASHING IMPLEMENTATION IN KINDERGARTEN STUDENTS GALILEA HOSANNA KIDS MEDAN, 2023. PENDISTRA [Internet]. 2022Dec.24 [cited 2024Jul.22];5(2):152-60. Available from: https://ejournal.ust.ac.id/index.php/PENDISTRA/article/view/2606