Siti Nurjanah, and Risma Dwi Arisona. “PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERHADAP MOTIVASI BELAJAR IPS TERPADU PADA MATERI KEGIATAN EKONOMI”. JIIPSI: Jurnal Ilmiah Ilmu Pengetahuan Sosial Indonesia 1, no. 1 (January 30, 2021): 13-23. Accessed December 15, 2024. https://ejournal.iainponorogo.ac.id/index.php/jiipsi/article/view/42.