Chucherd, M. “The Competency Development Process of Songkhla Vocational College to Build up Students’ Desirable Characteristics”. Institute of Vocational Education Southern Region 3 Journal (KRIS Journal), vol. 2, no. 2, Dec. 2022, pp. 17-30, https://so08.tci-thaijo.org/index.php/KRIS/article/view/3226.