Sopharak, Wilawan, and Kunnika Vaisopha. “Analysis of Professional Learning Community of Schools in Under Loei Primary Education Service Area Office 1: Analysis of Professional Learning Community of Schools in Under Loei Primary Education Service Area Office 1”. RATANABUTH JOURNAL 5, no. 2 (August 31, 2023): 125–141. accessed April 8, 2025. https://so07.tci-thaijo.org/index.php/rtnb/article/view/2857.