FARIDA, N.; SYAUQILLAH, M. RING OF SECURITY REVIEW ON THE VITAL OBJECTS OF THE ELECTRICITY SUBFIELD. Jurnal Ekonomi, [S. l.], v. 12, n. 02, p. 1248–1258, 2023. Disponível em: https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/1541. Acesso em: 16 may. 2026.