Penerapan Model Pembelajaran Problem Based Learning untuk Meningkatkan Hasil Belajar Siswa Kelas XI. Science and Physics Education Journal (SPEJ, [S. l.], v. 7, n. 2, p. 79–83, 2024. DOI: 10.31539/spej.v7i2.11904. Disponível em: https://journal.ipm2kpe.or.id/index.php/SPEJ/article/view/11904. Acesso em: 11 jan. 2026.