SIJABAT, J. P. Hizbul Wathan Uniform Policy as a Media for Instilling Discipline at Muhammadiyah Elementary School Kleco Kotagede Yogyakarta. Journal of Indonesian Progressive Education, [S. l.], v. 1, n. 2, p. 83–89, 2024. DOI: 10.63617/jipe.v1i2.11. Disponível em: http://icipi.org/index.php/JIPE/article/view/11. Acesso em: 16 jul. 2025.