Edy Saptono, and Agus Sudarya. 2024. “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) 4 (2). https://doi.org/10.55227/ijhess.v4i2.1298.