จันทร์เอียด จุฑาธิปต์. “Integrated Strategic Plan for Sustainable Tourism Development in Samutsongkhram Province”. Liberal Arts Review 12, no. 23 (June 28, 2017): 85–96. Accessed March 29, 2024. https://so04.tci-thaijo.org/index.php/larhcu/article/view/152349.