Sonporn Sirikhan และ Kanchana Prapphal. (2010) Assessing pragmatic ability of Thai hotel management and tourism students in the context of hotel front office department /. Chulalongkorn University,:ม.ป.ท.Sonporn Sirikhan และ Kanchana Prapphal. 2010. Assessing pragmatic ability of Thai hotel management and tourism students in the context of hotel front office department /. ม.ป.ท.:Chulalongkorn University,;Sonporn Sirikhan และ Kanchana Prapphal. Assessing pragmatic ability of Thai hotel management and tourism students in the context of hotel front office department /. ม.ป.ท.:Chulalongkorn University, 2010. Print.