Hansamorn, Kittiphan, and Varataya Thammakittipob. 2023. “Problems and Requirements in Teaching and Learning at the Vocational Level in the Eastern Economic Corridor from the Situation of the Spread of the Covid-19 Virus”. University of the Thai Chamber of Commerce Journal Humanities and Social Sciences 43 (4):101-20. https://so06.tci-thaijo.org/index.php/utccjournalhs/article/view/264217.