Buakaew, Somnug, and Kitti Rattanarasri. 2021. “The Development of Dual Vocational Education System Management Model under Uttaradit Vocational Education Office”. Ratchaphruek Journal 19 (1):129-39. https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/247529.