Pramual, W., & Siriphongworakun, R. (2021). Professional Learning Community Development in literature Integration Learning to Enhance Conceptual Thinking Skill of Mathayomsueksa 3 Mahasarakham University Demonstration School (secondary). Journal for Developing the Social and Community, 8(1), 463–478. retrieved from https://so03.tci-thaijo.org/index.php/rdirmu/article/view/246680