Nurul Aini, Ansor and Rahmad Hidayat Siregar 2026. EFEKTIVITAS PENINGKATAN HASIL BELAJAR DENGAN PENDEKATAN PROBLEM BASED LEARNING. Inteligensia: Jurnal Studi Keislaman. 9, 1 (Jun. 2026), 79–90. DOI:https://doi.org/10.54604/itg.v9i1.392.