Simamora E. Peningkatan Hasil Belajar Fisika Materi Karakteristik Gelombang Mekanik Mengunakan Model Pembelajaran Problem Base Learning (PBL) dI Kelas XII MIPA 2 SMAN 2 Muaro Jambi. jptam [Internet]. 2021 Aug. 23 [cited 2024 Dec. 21];5(2):4638-49. Available from: http://jptam.org/index.php/jptam/article/view/1618