Apriyani T, Astuty DA, Agustina D. The effectiveness of video promotional media in implementing hand washing with soap at State Elementary School 04 Rantauprapat . midwifery [Internet]. 2024Aug.31 [cited 2024Oct.9];12(3):1240-6. Available from: https://midwifery.iocspublisher.org/index.php/midwifery/article/view/1652