The Influence of Audiovisual Media on the Level of Knowlegde and Attitude for Good and Correct Handwashing with Soap (CTPS) at Yaspenha Primary School Medan Marelan . J Keskom [Internet]. 2024 Sep. 19 [cited 2026 Sep. 14];10(2):377-84. Available from: https://jurnal.htp.ac.id/index.php/keskom/article/view/1930