Meechaiyo, C., & Wannasri, J. (2026). Guidelines for Development the Effectiveness of Learning Management to Student Quality in Small- Sized Schools under Phichit Primary Educational Service Area Office 1. Journal of Social Science Kamphaeng Saen, 1(2), 152–164. retrieved from https://so17.tci-thaijo.org/index.php/JSSK/article/view/2180