Ma’arif M. Penguatan Karakter Kedisiplinan Siswa melalui Ekstrakurikuler Tapak Suci di Sekolah Menengah Pertama Muhammadiyah Pakem Sleman. JPkM [Internet]. 2023May22 [cited 2024Jul.6];3(1):18-24. Available from: https://journal.actual-insight.com/index.php/jpkm/article/view/1505