Waroonroj, Jirawat, and Suntorn Chamarat. 2018. “The Guidelines for Teacher Development on Classroom Research in Small-Sized Schools under the KhonKaen Primary Educational Service Area Office 1”. Dhammathas Academic Journal 18 (2):111-20. https://so06.tci-thaijo.org/index.php/dhammathas/article/view/121975.