Sriburin, W. and Ardkaew, J. (2019) “Factor analysis of The 21st Century Learning Person Characteristics of Matthayomsueksa 3 Students Under Loei Primary Educational Service area office 1”, Journal of Humanities and Social Sciences University of Phayao, 7(2), pp. 1 - 23. Available at: https://so03.tci-thaijo.org/index.php/Humanties-up/article/view/209864 (Accessed: 11August2020).