SINAMO, R.; PASARIBU, M. Problematics of Muhammadiyah Learning at SMP Muhammadiyah 51 Sidikalang. Edumaniora : Jurnal Pendidikan dan Humaniora, [S. l.], v. 2, n. 01, p. 24–28, 2023. Disponível em: https://journal.cdfpublisher.org/index.php/edumaniora/article/view/101. Acesso em: 18 apr. 2026.