จรรยาสุทธิวงศ์ ภัควัฒน์. “The Study of investment in Oddar Meancheay Cambodia through Choung Sa-Ngam check-points in Sisaket”. Sisaket Rajabhat Law Journal 1, no. 2 (December 27, 2024): 79–106. accessed May 9, 2025. https://so17.tci-thaijo.org/index.php/sisaketlawjournal/article/view/739.