Polkul, Cherdchai, Chayakarn Ruangsuwan, and Wimonmas Pathomvanichkul. “A Model for the Development of a Collaborative Network for Learning Management in a Learning Center Based on the Sufficiency Economy Philosophy of Small Secondary Schools Under the Office of Secondary Education Service Area 26”. Journal for Developing the Social and Community 11, no. 1 (April 28, 2024): 529–548. accessed October 13, 2026. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/272722.