Thongthew, Sumlee. “IMPACTS OF ONLINE LESSONS ON ELEMENTARY STUDENTS’ COGNITIVE ENGAGEMENT AND LEARNING ACHIEVEMENT”. Journal of Education and Innovation 14, no. 2 (June 14, 2013): 101–106. Accessed May 8, 2024. https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/9387.