Plangnuam, P., Sompongtam, C., & Sonkla, J. (2025). The Relationship Between Instructional Leadership of Principals and Professional Learning Community of Schools under Sisaket Primary Educational Service Area Office 2. Research and Development Journal Sisaket Rajabhat University, 12(2), 72–90. retrieved from https://so01.tci-thaijo.org/index.php/sskru-resarch/article/view/283688