Phutjun, Chatpramon, Wanlapa Wichayawong, and Janjiraporn Panyindee. 2018. “Teaching Factors Related to Happy Learning of Nakhon Pathom Rajabhat University Students”. Journal of Management Science Nakhon Pathom Rajabhat University 1 (1):1-12. https://doi.org/10.14456/jmsnpru.2014.1.