“Penerapan Model Pembelajaran Problem Based Learning Dalam Meningkatkan Hasil Belajar Siswa Kelas IX.1 Materi Memahami ArtiSurat Al-Hujurat Ayat 13 di SMP IT Nurul Ishlah Banda Aceh”, Validitas, vol. 1, no. 2, pp. 99–108, Jun. 2025, Accessed: Dec. 11, 2025. [Online]. Available: https://journal.maysapublishing.com/index.php/Validitas/article/view/238