UTOMO, Satrio; AZZQY, Andrea Abdul Rahman. Penguasaan FIR (Flight Information Region) di Kepulauan Riau Terkait dengan DCA (Defense Cooperation Agreement) Indonesia-Singapura. Balcony, [S. l.], v. 1, n. 1, p. 63–76, 2017. Disponível em: https://jom.fisip.budiluhur.ac.id/balcony/article/view/20. Acesso em: 20 apr. 2025.