PENERAPAN MODEL PROBLEM BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS PADA MATA PELAJARAN USHUL FIKIH KELAS XII MAN 1 MEDAN. Sindoro: Cendikia Pendidikan, [S. l.], v. 18, n. 11, 2026. Disponível em: https://journal.cib.institute/index.php/sindoro/article/view/5704. Acesso em: 25 oct. 2026.