Vesaracharnont, Chotima, and Suebpong Prabyai. 2023. “Improved English Language Skills Needed by Students Enrolled in Technical and Vocational Education in Thailand 4.0”. Journal of Advanced Development in Engineering and Science 7 (20). Babgkok, Thailand:59-69. https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/882.