MARLINDA, H.; ALIM, J. A.; IKHSAN. Pengaruh Model Pembelajaran Problem Based Learning (PBL) Berbantuan Youtube Terhadap Kemampuan Berpikir Kritis dan Motivasi Belajar Matematika Siswa Kelas IX . Jurnal Kiprah Pendidikan, [S. l.], v. 4, n. 2, p. 71–86, 2025. DOI: 10.33578/kpd.v4i2.273. Disponível em: https://kpd.ejournal.unri.ac.id/index.php/kpd/article/view/273. Acesso em: 2 aug. 2025.