“Peningkatan Kemampuan Berfikir Kritis Matematika Melalui Model Problem Based Learning Pada Siswa Kelas III SD Negeri 2 Culik”. JPPD: Jurnal Penelitian Pendidikan Dasar 3, no. 02 (October 27, 2026): 207–220. Accessed October 27, 2026. https://journal.lumiverapublishing.org/index.php/jppd/article/view/490.