Farib PM, Ikhsan M, Subianto M. Proses berpikir kritis matematis siswa sekolah menengah pertama melalui discovery learning. J. ris. pendidik. mat [Internet]. 2019 May 29 [cited 2025 May 9];6(1):99-117. Available from: https://journal.uny.ac.id/index.php/jrpm/article/view/21396