Purnama, Ari Bayu, and Muhammad Ridha Iswardhana. “KALIMANTAN BORDER ISSUES AND INDONESIA’S BORDER DIPLOMACY TOWARDS MALAYSIA”. Natapraja 10, no. 2 (December 10, 2022): 105–124. Accessed June 6, 2025. https://journal.uny.ac.id/index.php/natapraja/article/view/42347.