Thanapotivirat, P., and S. . Pooripakdee. “Service Models and Service Innovations of Smart Hotels for Thai Business Travelers in the Digital Era”. Journal of Humanities and Social Sciences Thonburi University, vol. 18, no. 1, Jan. 2024, pp. 161-78, https://so03.tci-thaijo.org/index.php/trujournal/article/view/270130.