The Role of Principal Visionary Leadership in The 21st Century. Mudir: Jurnal Manajemen Pendidikan, [S. l.], v. 7, n. 2, p. 204–210, 2026. DOI: 10.55352/4fs3e536. Disponível em: https://ejournal.unsuda.ac.id/index.php/MPI/article/view/1748. Acesso em: 27 aug. 2026.