Nelyahardi, N. “Implementasi Nilai-Nilai Kedisiplinan Siswa Sekolah Dasar”. Jurnal Gentala Pendidikan Dasar 2, no. 2 (December 8, 2017): 202–218. Accessed April 9, 2025. https://online-journal.unja.ac.id/gentala/article/view/6806.