Tipamas Chumworatayee. (2021) Thai undergraduate and graduate students' perceptions towards effective English teacher attributes. <i>LEARN Journal: Language Education and Acquisition Research Network</i>, <i>14</i>(1), 546-573.Tipamas Chumworatayee. "Thai undergraduate and graduate students' perceptions towards effective English teacher attributes". LEARN Journal: Language Education and Acquisition Research Network 14 (2021):546-573.Tipamas Chumworatayee. Thai undergraduate and graduate students' perceptions towards effective English teacher attributes. Language Institute Thammasat University:ม.ป.ท. 2021.