Watcharapong Khunpluem ว. ค., and Chokechai Suveatwatanakul โ. ส. “Development of Guideline to Enhance Employee Engagement for Innovative Organization in Hotel Industry”. Dusit Thani College Journal, vol. 12, no. 2, May 2018, pp. 49-62, https://so01.tci-thaijo.org/index.php/journaldtc/article/view/125838.