Perwithasari, N. M. N., Sutrio, & Harjono, A. (2023). 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, 9(2), 216–223. https://doi.org/10.29303/jpft.v9i2.5269