Chaemchamrus, K., Erb-im, N., Phuanpoh, Y., & Sermchayut, R. (2022). Upgrading and Increasing Value of Souvenir Products of Tourist Attractions; Experience the Charm of the Old City Life Style, Phra Nakhon Si Ayutthaya Province. Journal of Arts Management, 6(3), 1585–1603. Retrieved from https://so02.tci-thaijo.org/index.php/jam/article/view/257035