Pimthong, Pattamaporn, Sasithon Soparat, and Suthida Chamrat. “The Constructionist Paradigm Shift of Teachers in 21th Century Learning”. Kasetsart Journal of Social Sciences 38, no. 1 (April 1, 2017): 470–481. Accessed March 28, 2024. https://so04.tci-thaijo.org/index.php/kjss/article/view/242645.