de Frites, Chairani Riski, Demsa Simbolon, and Linda. “The Influence of Digital Literacy Classes With QR-Code Media on Fast Food Eating Habits in Obese Adolescents”. Futurity Medicine 3, no. 4 (December 10, 2024). Accessed July 26, 2026. https://futurity-medicine.com/index.php/fm/article/view/134.