Peningkatan Motivasi Belajar Materi Haji, Zakat dan Wakaf Melalui Problem Based Learning Kelas XI SMAN Unggul Harapan Persada. Validitas: Jurnal Pendidikan dan Pembelajaran, [S. l.], v. 1, n. 1, p. 105–121, 2025. Disponível em: https://journal.maysapublishing.com/index.php/Validitas/article/view/45. Acesso em: 27 apr. 2025.