Muslimah, Muslimah. “Peningkatan Hasil Belajar IPS Melalui Model Pembelajaran Problem Based Learning Kelas IXD SMP Negeri 1 Tawangsari”. Jurnal Pendidikan 29, no. 3 (November 30, 2020): 287–294. Accessed April 28, 2024. http://journal.univetbantara.ac.id/index.php/jp/article/view/1012.