SILABAN, Y. F. H.; JUMADI, J. Concept understanding profile of high school students on doppler effect and sound intensity levels. Momentum: Physics Education Journal, [S. l.], v. 6, n. 1, p. 51–58, 2022. DOI: 10.21067/mpej.v6i1.5664. Disponível em: https://ejournal.unikama.ac.id/index.php/momentum/article/view/5664. Acesso em: 4 may. 2024.