Rattarasarn, C., O. Intawongse, J. Sungsawat, and et al. “The Foreign Tourists’ Attitude toward Cultural Tourism through the Ancient Monuments in Bangkok”. Journal of Cultural Approach, vol. 25, no. 47, May 2024, pp. 28-42, https://so02.tci-thaijo.org/index.php/cultural_approach/article/view/267133.