Ervina, Risda, Monalisa Monalisa, Gusti Lestari Handayani, and Vivinati Dewi. “Development of a Digital Pocketbook on Balanced Nutrition As an Educational Media for Preventing Anemia in Teenagers”. LINK 21, no. 2 (November 30, 2025): 104–113. Accessed October 21, 2026. https://ejournal.poltekkes-smg.ac.id/ojs/index.php/link/article/view/13099.