Phutjun, Chatpramon, Wanlapa Wichayawong, and Janjiraporn Panyindee. “Teaching Factors Related to Happy Learning of Nakhon Pathom Rajabhat University Students”. Journal of Management Science Nakhon Pathom Rajabhat University 1, no. 1 (September 14, 2018): 1–12. Accessed April 25, 2024. https://so03.tci-thaijo.org/index.php/JMSNPRU/article/view/145675.