RUSNIATI, R. Meningkatkan Minat dan Hasil Belajar Matematika Melalui Model Pembelajaran Problem-Based Learning Siswa SMP Negeri 4 Batam. Nusantara: Jurnal Pendidikan Indonesia, [S. l.], v. 3, n. 2, p. 223–252, 2023. DOI: 10.14421/njpi.2023.v3i2-2. Disponível em: http://journal.rumahindonesia.org/index.php/njpi/article/view/148. Acesso em: 30 may. 2026.