ARITONANG, Sovian; JUPRIYANTO, Jupriyanto; JUHANA, Riyadi. ANALYSIS OF THE PROCESS OF IRON SAND PROCESSING INTO SPONGE IRON IN ORDER TO SUPPORT THE DEFENSE INDUSTRY OF STEEL RAW MATERIALS. Jurnal Pertahanan dan Bela Negara, [S. l.], v. 9, n. 1, p. 1–16, 2019. DOI: 10.33172/jpbh.v9i1.514. Disponível em: https://upgradeojs.rifqisyams.id/index.php/JPBH/article/view/514. Acesso em: 23 jul. 2026.