Uyen, B. P. ., Ngan, L. K. ., Thao, N. P. and Tong, D. H. (2021) “Impulsing the Development of Students’ Competency Related to Mathematical Thinking and Reasoning through Teaching Straight-Line Equations”, International Journal of Learning, Teaching and Educational Research, 20(6), pp. 38–65. Available at: https://ijlter.myres.net/index.php/ijlter/article/view/77 (Accessed: 10 June 2026).