Bunrueang, S., P. Kaewplayngam, and P. . . Srisatanon. “Decision to Use Open Learning Service Thai MOOC”. Rajapark Journal, vol. 15, no. 38, Feb. 2021, pp. 241-52, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/248489.