Pikunkwan, P., N. Inoue, and J. Ketsing. “Goals of Learning Science and Methods Used for Developing Non-Cognitive Skills in Science Classroom: Middle School Teachers’ Perspectives”. STOU Education Journal, vol. 15, no. 1, June 2022, pp. 100-14, https://so05.tci-thaijo.org/index.php/edjour_stou/article/view/253253.