Kruarattikan, Sitthiphon. “Norodom Sihanouk’s Special Relationship With North Korea: A Preliminary Survey”. Interdisciplinary Research Review 14, no. 4 (October 7, 2019): 51–54. Accessed May 8, 2024. https://ph02.tci-thaijo.org/index.php/jtir/article/view/221556.