Kusumaningsih, Widya, and Imam Kusmaryono. “Do Eligible Teacher and Student Activities in Problem-Based Mathematics Learning Impact Critical Thinking?”. Mosharafa: Jurnal Pendidikan Matematika 13, no. 3 (July 30, 2024): 709–726. Accessed April 19, 2025. https://journal.institutpendidikan.ac.id/index.php/mosharafa/article/view/2256.