PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR KELAS XI SMA NEGERI 19 PALEMBANG. AL-MUQADDIMAH . 2026;2(1):76-87. Accessed May 30, 2026. https://jurnal-muqaddimah.or.id/index.php/Al-Muqaddimah/article/view/46