Samjaji, Samjaji, Hadiyat Miko, and Agung Widyagdo. “Development of a Promotional Media Model Using Puzzle Media As an Effort to Increase Knowledge of Dental and Oral Health Maintenance in Preschool Children”. Journal Center of Excellent : Health Assistive Technology 2, no. 1 (March 20, 2024): 70–74. Accessed May 18, 2024. https://ejournal.poltekkesjakarta1.ac.id/index.php/jchat/article/view/1569.