Marzuki, Marzuki, Irfan Rusmar, Wahyudin Wahyudin, and Dadang Juandi. 2024. “Cognitive Flexibility: Exploring Students’ Critical Thinking Skills in Solving Mathematical Problems”. KnE Social Sciences 9 (13), 642–650. https://doi.org/10.18502/kss.v9i13.15968.