Awae, P., Chomchuen, A. and Sama-ae, A. (2018) “Effects of Learning Management by Concept Attainment Process on Concept of and Achievement in Mathematics”, KASEM BUNDIT JOURNAL, 19(2), pp. 108–124. available at: https://so04.tci-thaijo.org/index.php/jkbu/article/view/160684 (accessed: 17 September 2026).