Bunprasanrit, C., Ugsonkid, S. and Tangkawsakul, S. (2024) “THE STUDY OF HIGH SCHOOL STUDENTS’ MATHEMATICAL COMPETENCY ON INTEREST AND TIME VALUE OF MONEY BY TEACHING THROUGH PROBLEM SOLVING”, Journal of Education and Innovation, 26(4), pp. 116–129. available at: https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/270585 (accessed: 15 September 2026).