Hathairat Jongsermtrakoon และ Jutarat Vibulphol. (2009) The relationships between affective variables, willingness to communicate in English, and English communication behaviors of Thai secondary school students. Chulalongkorn University:ม.ป.ท.Hathairat Jongsermtrakoon และ Jutarat Vibulphol. 2009. The relationships between affective variables, willingness to communicate in English, and English communication behaviors of Thai secondary school students. ม.ป.ท.:Chulalongkorn University;Hathairat Jongsermtrakoon และ Jutarat Vibulphol. The relationships between affective variables, willingness to communicate in English, and English communication behaviors of Thai secondary school students. ม.ป.ท.:Chulalongkorn University, 2009. Print.