“The Effectiveness of Audio Visual Media and Snakes and Ladders Washing Hands on Knowledge of School Age Children”. Jurnal kesehatan komunitas (Journal of community health) 9, no. 2 (July 26, 2023): 231–239. Accessed July 29, 2026. https://jurnal.htp.ac.id/index.php/keskom/article/view/1398.