Keadplang, K., W. Hansuk, P. Suchaoin, and K. Pimanmassuriya. “Creative Economy on the Wellness Tourism of Elderly Tourists in Thailand: A Comparative Study of Thai, Japanese, and Chinese”. Rajapark Journal, vol. 18, no. 58, June 2024, pp. 450-65, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/271216.