ตาชม คมกฤช, and ยืนศักดิ์ สนิท. 2019. “Attitude and Actual Practices of Classroom Action Research of English Teachers”. Trends of Humanities and Social Sciences Research 6 (1):21-41. https://so03.tci-thaijo.org/index.php/Humanties-up/article/view/196619.