Sijabat JP. Hizbul Wathan Uniform Policy as a Media for Instilling Discipline at Muhammadiyah Elementary School Kleco Kotagede Yogyakarta. JIPE [Internet]. 2024 Nov. 23 [cited 2025 Jul. 16];1(2):83-9. Available from: http://icipi.org/index.php/JIPE/article/view/11