“PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA PADA MATERI INDEKS HARGA DIKELAS XI.1 SMA NEGERI 11 PALEMBANG”, AL-MUQADDIMAH , vol. 2, no. 1, pp. 52–59, Jan. 2026, Accessed: May 25, 2026. [Online]. Available: https://jurnal-muqaddimah.or.id/index.php/Al-Muqaddimah/article/view/45