Cheewatragoongit A. DISTANCE EDUCATION SERVICES IN SUKHOTHAI THAMMATHIRAT OPEN UNIVERSITY (STOU) AND KOREA NATIONAL OPEN UNIVERSITY (KNOU). Mod Manag Front J [internet]. 2013 Sep. 26 [cited 2026 Sep. 24];9(1):1-8. available from: https://so04.tci-thaijo.org/index.php/stou-sms-pr/article/view/11871