Narathip Naekumdee. (2017) The Efficiency of The Employees' Performance in The HospitalityServices Hotels and Resorts. In The Area of Koh Chang Trat Province. <i>Journal of Management Science Nakhon Pathom Rajabhat University</i>, <i>4</i>(2), 41-51.Narathip Naekumdee. "The Efficiency of The Employees' Performance in The HospitalityServices Hotels and Resorts. In The Area of Koh Chang Trat Province.". Journal of Management Science Nakhon Pathom Rajabhat University 4 (2017):41-51.Narathip Naekumdee. The Efficiency of The Employees' Performance in The HospitalityServices Hotels and Resorts. In The Area of Koh Chang Trat Province. Faculty of Management Science Nakhon Pathom Rajabhat University:ม.ป.ท. 2017.