สมาธิชลธาร, อุทธโยธาสมเกตุ, and คำปันบุญเลิศ. 2018. “The Development of The Manual for Dual Education Between Vocational Education and Secondary Education in Sob Moei Wittayakom School, Mae Hong Son Province”. Journal of Graduate Research 9 (1), 149-65. https://www.tci-thaijo.org/index.php/banditvijai/article/view/101881.