Latifah L. Peningkatan Motivasi Belajar Siswa Kelas VII Pelajaran IPS Melalui Model Problem Based Learning di SMP Negeri 3 Sabak AUH Kab. Siak Riau . JP3 [Internet]. 2022Feb.3 [cited 2025Jun.21];4(1). Available from: https://ejournal-jp3.com/index.php/Pendidikan/article/view/394