MUZAKKIR, A. The Effect of The Self-Directed Learning (SDL) Model on The Learning Engagement and Outcomes of Fourth-Grade Students at SDN 1 Mangkung. Jurnal Multidisiplin Sahombu, [S. l.], v. 5, n. 04, p. 710–718, 2025. Disponível em: https://ejournal.seaninstitute.or.id/index.php/JMS/article/view/6809. Acesso em: 8 nov. 2026.