watthanarat, anyamanee, and Boon-Anan Phinaitrup. 2022. “The Development of External Assessors’ Competencies in the 21st Century for Supporting Assessment Efficiencies in the Vocational Education System of Thailand”. Sripatum Review of Humanities and Social Sciences 22 (2):07-19. https://so05.tci-thaijo.org/index.php/spurhs/article/view/260114.