Suthamdee D, Chueasraku C. Policy Models on the Development of Intellectual Capital and Creative Economy to Strengthen Tourist Attractions in the Lower Northeastern Province, Thailand. jopag [internet]. 2025 May 31 [cited 2026 Aug. 29];15(2):1-14. available from: https://so03.tci-thaijo.org/index.php/jopag/article/view/278000