Sangkaew, Siwakorn, Ketkanok Urwongse, and Pichit Ritjaroon. “The Evaluation of Vocational Training Programs of Schools under the Kamphaeng Phet Provincial Office of Learning Encouragement”. STOU Education Journal 18, no. 2 (December 30, 2025): 52–68. accessed September 29, 2026. https://so05.tci-thaijo.org/index.php/edjour_stou/article/view/284608.