Abidin, Zaenal, and Fauziah Sulaiman. “The Effectiveness of Problem Based Learning on Students’ Ability to Think Critically”. Zabags International Journal of Education 2, no. 1 (April 30, 2024): 1–8. Accessed July 15, 2026. https://e.journal.zabagsqupublish.com/zijed/index.php/zijed/article/view/13.