Sriputtarin, S. “Organizational Factors and Development of Learning Skills in the 21st Century for Students of the Faculty of Education, Nakhon Phanom University”. Journal of Roi Et Rajabhat University, Vol. 15, no. 1, Apr. 2021, pp. 50-62, https://so03.tci-thaijo.org/index.php/reru/article/view/241010.