Muh. Ikram Nur Ilahi, Achmed Sukendro, M. Adnan Madjid and Pujo Widodo 2024. Empirical Approach in Border Defense in the North Natuna Sea. International Journal Of Humanities Education and Social Sciences (IJHESS) . 4, 3 (Dec. 2024). DOI:https://doi.org/10.55227/ijhess.v4i3.1215.