Sartika W, Rahman SR, Irfan M. Empowering students’ critical thinking skills using problem-based learning. Inornatus Biol. Educ. J. [Internet]. 2023 Jun. 25 [cited 2026 Jun. 19];3(2):67-74. Available from: https://journalfkipunipa.org/index.php/ibej/article/view/427