Chalermkit, A., & Rupan, P. (2021). The Competence Development for Using Information Technology of Teacher In Educational Institutions under Office of the Vocational Education Commission of Phanakhon sri Ayutthaya Province. Mahachula Academic Journal, 8(3), 192–204. Retrieved from https://so04.tci-thaijo.org/index.php/JMA/article/view/249075