วิศวธีรานนท์ ส. (2018) “40th Anniversary of STOU School of Educational Studies and Its Success in Distance Learning”, STOU Education Journal, 11(2), pp. 1–18. available at: https://so05.tci-thaijo.org/index.php/edjour_stou/article/view/151985 (accessed: 30 September 2026).