ARITONANG, Sovian; SUPRIYADI, Imam; SILALAHI, Betty. Energy Diversification Indonesian Railways. Jurnal Pertahanan: Media Informasi tentang Kajian dan Strategi Pertahanan yang Mengedepankan Identity, Nasionalism dan Integrity, [S. l.], v. 2, n. 3, p. 193–212, 2016. DOI: 10.33172/jp.v2i3.95. Disponível em: http://jurnal.idu.ac.id/index.php/DefenseJournal/article/view/95. Acesso em: 5 aug. 2026.