Sripo , N. and Wangsrikoon, A. (2022) “A study on the Problems in Communication of Phichit Vocational College”, Journal of Modern Learning Development, 7(6), pp. 236–254. available at: https://so06.tci-thaijo.org/index.php/jomld/article/view/255290 (accessed: 30 September 2026).