Rungsattra, Chonthicha. 2022. “The Effect of Learning Achievement and Satisfaction With Flipped Classroom of Student in Seminar in Tourism and Hospitality Management Classroom Teaching in New Normal Life During the COVID-19 Epidemic”. Dusit Thani College Journal 16 (3):183-98. https://so01.tci-thaijo.org/index.php/journaldtc/article/view/264595.