Yodmern, P., and T. Polyiem. “Implementation Guidelines of Teacher Professional Learning Community in Schools Under the Secondary Educational Service Area Office 19 (Nong Bua Lamphu)”. Academic Journal of Mahamakut Buddhist University Roi Et Campus, vol. 10, no. 1, May 2020, pp. 327-38, https://so01.tci-thaijo.org/index.php/AJMBU/article/view/241246.