Apriyani, Trisna, Delfriana Ayu Astuty, and Dewi Agustina. “The Effectiveness of Video Promotional Media in Implementing Hand Washing With Soap at State Elementary School 04 Rantauprapat ”. Science Midwifery 12, no. 3 (August 31, 2024): 1240–1246. Accessed June 5, 2026. https://www.midwifery.iocspublisher.org/index.php/midwifery/article/view/1652.