อุทุมพร โ., and K. Meeprom. “The Relationship Between the Promotion of Lifelong Learning and the Effectiveness of Educational Institutions under Nan Provincial office of Learning Encouragement”. Journal of Setthawit Review, vol. 6, no. 2, Aug. 2026, pp. 3920-32, https://so12.tci-thaijo.org/index.php/stw/article/view/7122.