Aminudin, M., Kartono, K. and Masrukan, M. (2022) “Problem Solving Skills in Challenge-based Learning with Tutor Feedback Based on Cognitive Style”, Unnes Journal of Mathematics Education Research, 11(2), pp. 159-164. Available at: https://journal.unnes.ac.id/sju/ujmer/article/view/65388 (Accessed: 21December2024).