Safira AA, Darmawan P. Empowering students’ critical thinking through the integration of statistical board teaching aids and problem-based learning. Polyhedron Int. J. Math. Educ. [Internet]. 2025 May 28 [cited 2026 Feb. 10];3(1):45-54. Available from: https://nakiscience.com/index.php/pijme/article/view/166