Primawati, Rena Setiana, and Hilmiy Ila Robbihi. “Powtoon Media in the Whatsapp Group Application on Dental Hygiene Behavior in Primary School Children”. Journal Center of Excellent : Health Assistive Technology 2, no. 1 (March 20, 2024): 28–32. Accessed May 18, 2024. https://ejournal.poltekkesjakarta1.ac.id/index.php/jchat/article/view/1525.