Kunthajet, Kunchalikar, Songyos Kawmongkon, and Somnuk Kareevet. 2023. “The Management for Improvement the Quality of Public Vocational Colleges under Office of the Vocational Education Commission”. Journal of Arts Management 7 (2). Bangkok, Thailand:790-803. https://so02.tci-thaijo.org/index.php/jam/article/view/263769.