EFEKTIVITAS PROBLEM BASED LEARNING DENGAN PENDEKATAN OPEN ENDED TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA KELAS VII. Jurnal Intelek Dan Cendikiawan Nusantara, [S. l.], v. 1, n. 3, p. 3219–3225, 2024. Disponível em: https://jicnusantara.com/index.php/jicn/article/view/363. Acesso em: 9 sep. 2026.