EDY SAPTONO; AGUS SUDARYA. The IBM Model in Border Management of The Riau Islands Province to Increase Investment Competitiveness to Support State Defense: Pengelolaan Perbatasan Provinsi Kepulauan Riau untuk Meningkatkan Daya Saing Investasi . International Journal Of Humanities Education and Social Sciences (IJHESS) , [S. l.], v. 4, n. 2, 2024. DOI: 10.55227/ijhess.v4i2.1298. Disponível em: https://ijhess.com/index.php/ijhess/article/view/1298. Acesso em: 1 may. 2026.