HERMAWAN, H. IMPLEMENTASI “PROBLEM BASED LEARNING” DALAM MENINGKATKAN KEMAMPUAN MEMECAHKAN MASALAH HAM DI MATA PELAJARAN PPKN. Journal of Innovation Research and Knowledge, [S. l.], v. 2, n. 7, p. 2875–2886, 2022. DOI: 10.53625/jirk.v2i7.4257. Disponível em: https://mail.bajangjournal.com/index.php/JIRK/article/view/4257. Acesso em: 5 jul. 2025.