Norachan, N., Norachan, C. ., & Numnaphol, S. . (2025). Lifelong Learning: Knowledge Management for Personnel Development in Educational Opportunity Expansion Schools: Lifelong Learning: Knowledge Management for Personnel Development in Educational Opportunity Expansion Schools. RATANABUTH JOURNAL, 7(1), 509–518. retrieved from https://so07.tci-thaijo.org/index.php/rtnb/article/view/6402