TARIGAN, Yenni Octavia. Educational Planning Model In Puteri Sion. EducanduM : jurnal manajemen pendidikan, [S. l.], v. 15, n. 1, 2025. DOI: 10.24114/em.v15i1.21887. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/em/article/view/21887. Acesso em: 17 jan. 2026.