Tanida Lakornsri และ Suwaree Namwong. (2017) Developing training program assessment instrument for employee in the hotel industry. National Institute of Development Administration:ม.ป.ท.Tanida Lakornsri และ Suwaree Namwong. 2017. Developing training program assessment instrument for employee in the hotel industry. ม.ป.ท.:National Institute of Development Administration;Tanida Lakornsri และ Suwaree Namwong. Developing training program assessment instrument for employee in the hotel industry. ม.ป.ท.:National Institute of Development Administration, 2017. Print.