Aminudin, Mohamad, dan Imam Kusmaryono. “Mathematical Teacher Efforts to Develop student’s Critical Thinking Skill”. Math Didactic: Jurnal Pendidikan Matematika 5, no. 3 (Desember 30, 2019): 248-258. Diakses Juli 9, 2025. https://jurnal.stkipbjm.ac.id/index.php/math/article/view/773.