PERWITHASARI, Ni Made Nitha; SUTRIO; HARJONO, Ahmad. The Effect of Problem-Based Learning Model Assisted by Contextual Videos on Students’ Learning Outcomes in The Subject of Sound Waves. Jurnal Pendidikan Fisika dan Teknologi (JPFT), [S. l.], v. 9, n. 2, p. 216–223, 2023. DOI: 10.29303/jpft.v9i2.5269. Disponível em: http://www.jurnalfkip.unram.ac.id/index.php/JPFT/article/view/5269. Acesso em: 18 mei. 2024.