Attapol Khamkhien. (2012) Proficiency, motivation, and classroom anxiety and their effects on language learning strategies used by Thai EFL learners. <i>Rangsit Journal of Arts and Sciences</i>, <i>2</i>(2), 85-98.Attapol Khamkhien. "Proficiency, motivation, and classroom anxiety and their effects on language learning strategies used by Thai EFL learners". Rangsit Journal of Arts and Sciences 2 (2012):85-98.Attapol Khamkhien. Proficiency, motivation, and classroom anxiety and their effects on language learning strategies used by Thai EFL learners. Rangsit University:ม.ป.ท. 2012.