HASIBUAN, Yunita Syari Denny. Peranan Willem Iskandar (Sati Nasution) dalam Perkembangan Pendidikan di Sumatera Utara. Islamic Education, [S. l.], v. 4, n. 1, p. 1–6, 2024. DOI: 10.57251/ie.v4i1.1152. Disponível em: https://jurnal.medanresourcecenter.org/index.php/IE/article/view/1152. Acesso em: 11 mar. 2026.