Puvanont P, Chancharoen D, Tanchaisak K, Wattanapanit N. A Competency Development Model for Hotel Personnel: A Case Study of the Zign Hotel Chain. Ph.D. in Soc. Sci. J. [internet]. 2022 Aug. 27 [cited 2026 Sep. 20];12(2):424-40. available from: https://so05.tci-thaijo.org/index.php/phdssj/article/view/243212