Implikasi Perjanjian Internasional Flight Information Region (FIR) Singapura atas Ruang Udara Indonesia terhadap Kepulauan Riau. SNISTEK [Internet]. 2019 Nov. 15 [cited 2026 Oct. 6];2:127-32. Available from: https://ejournal.upbatam.ac.id/index.php/prosiding/article/view/1520