SARI, Harwita. Pengambilalihan Flight Information Region (Fir) Singapura Atas Kepulauan Riau Dan Natuna Dalam Perspektif Teori Kedaulatan. Innovative: Journal Of Social Science Research, [S. l.], v. 4, n. 1, p. 9804–9817, 2024. DOI: 10.31004/innovative.v4i1.8973. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/8973. Acesso em: 12 sep. 2026.