PERAN GEOSTRATEGI DALAM MEWUJUDKAN KETAHANAN NASIONAL INDONESIA. Jurnal Aptana: Jurnal Ilmu dan Humaniora, [S. l.], v. 3, n. 1, p. 1–9, 2025. Disponível em: https://mentech.id/aptana/index.php/edu/article/view/45. Acesso em: 18 aug. 2026.