Kaewon, S., and K. Kaewon. “LEARNING RESULTS WITH M-LEARNING LESSONS ON PORTABLE DEVICES IN LANGUAGE AND COMMUNICATION FOR TEACHERS SUBJECT TO IMPROVE LEARNING ACHIEVEMENT OF SECOND - YEAR STUDENTS IN PHYSICAL EDUCATION, THAILAND NATIONAL SPORTS UNIVERSITY LAMPANG CAMPUS”. Academic Journal of Thailand National Sports University, vol. 17, no. 1, Jan. 2025, pp. 290-04, https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/267413.