Development of PeCiKu TAHeS Educational Media (Hand Washing Habits and Short Nails for Grat and Healthy Children) to Increase Knowledge and Attitudes to Prevent Covid 19 at Tanjungsari 2 Elementary School, Blitar City. josar [Internet]. 2021 Jun. 2 [cited 2026 Jan. 11];6(2):298-312. Available from: https://ejournal.unisbablitar.ac.id/index.php/josar/article/view/2068