INNOVATION IN LEARNING MEDIA: FLASHCARDS FOR THE INDONESIAN NATIONAL ANTHEM: A RELIGIOUS, PHILOSOPHICAL, AND PSYCHOLOGICAL REVIEW IN ELEMENTARY SCHOOLS. Jurnal Merah Putih Sekolah Dasar, [S. l.], v. 3, n. 1, p. 30–37, 2025. DOI: 10.24114/jmpsd.v3i1.69325. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jmpsd/article/view/69325. Acesso em: 22 apr. 2026.