Sirawit Apairach และ Jutarat Vibulphol. (2015) Beliefs about Language Learning of Thai Upper Secondary School Students in Different Educational Contexts. <i>PASAA : a journal of language teaching and learning</i>, <i>50</i>, 65-94.Sirawit Apairach และ Jutarat Vibulphol. "Beliefs about Language Learning of Thai Upper Secondary School Students in Different Educational Contexts". PASAA : a journal of language teaching and learning 50 (2015):65-94.Sirawit Apairach และ Jutarat Vibulphol. Beliefs about Language Learning of Thai Upper Secondary School Students in Different Educational Contexts. สถาบันภาษา จุฬาลงกรณ์มหาวิทยาลัย:ม.ป.ท. 2015.