Chantaroch, Ananta, Nathaporn Utakrit, and Pairote Stirayakorn. “DEVELOPMENT OF SUPPLEMENTARY INSTRUCTION IN ADDITIONAL BASIC COMPETENCIES MODEL FOR STUDENTS IN THE DUAL VOCATIONAL SYSTEM UNDER THE OFFICE OF THE VOCATIONAL EDUCATION COMMISSION THROUGH ACTIVITY – BASED CAMP”. Journal of Liberal Art of Rajamangala University of Technology Suvarnabhumi 8, no. 2 (August 3, 2026): 356–369. accessed October 12, 2026. https://so03.tci-thaijo.org/index.php/art/article/view/300136.