Development of monopoly media based on QR-Code on the theme of rich my country. JOURNAL OF TEACHING AND LEARNING IN ELEMENTARY EDUCATION (JTLEE), [S. l.], v. 6, n. 2, p. 159–170, 2023. DOI: 10.33578/. Disponível em: https://jtlee.ejournal.unri.ac.id/index.php/JTLEE/article/view/220. Acesso em: 6 nov. 2025.