SITI FAZRIA TOBUTO; DEWA GEDE EKA SETIAWAN; LUKMAN SAMATOWA. The Influence of the Problem-Based Learning Model with a Differentiated Approach on Senior High School Students’ Problem-Solving Ability in the Concept of Sound Waves. International Journal of Health, Economics, and Social Sciences (IJHESS), [S. l.], v. 7, n. 4, p. 1848~1853, 2025. DOI: 10.56338/ijhess.v7i4.8883. Disponível em: https://jurnal.unismuhpalu.ac.id/index.php/IJHESS/article/view/8883. Acesso em: 1 oct. 2026.