Ali Wardana, YL.Sukestiyarno, Wardono, and Amin Suyitno. 2024. “Analysis of High School Students’ Critical Thinking Ability in Solving Mathematical Problems With Independence Problem-Based Learning (IPBL) Model: A Case Study on Middle Class Students”. Educational Administration: Theory and Practice 30 (4):7137-47. https://doi.org/10.53555/kuey.v30i4.1523.