©2013 National Research Council of Thailand
Patsriyanyong Sungroong. 2008. Outside classroom English use : a survey of MA students. Bangkok:Thammasat University;
Patsriyanyong Sungroong. (2008) Outside classroom English use : a survey of MA students (รายงานผลงานวิจัย). Thammasat University:Bangkok.
Patsriyanyong Sungroong. Outside classroom English use : a survey of MA students. Bangkok:Thammasat University, 2008.
Patsriyanyong Sungroong. (2008) Outside classroom English use : a survey of MA students (รายงานผลงานวิจัย). Thammasat University:Bangkok.