Sanmuang W, Foosiri P. Factors affecting online language course purchase intention. SWRD. J. Humanit. Soc. Sci. [internet]. 2025 Jun. 13 [cited 2026 Sep. 21];17(1, January-June):1-15, Article 281763. available from: https://so04.tci-thaijo.org/index.php/swurd/article/view/281763