TITIK, N. I. Pengembangan instrumen pengukuran disiplin siswa. Wiyata Dharma: Jurnal Penelitian dan Evaluasi Pendidikan, [S. l.], v. 7, n. 1, p. 46–55, 2019. DOI: 10.30738/wd.v7i1.3733. Disponível em: https://jurnal.ustjogja.ac.id/index.php/wd/article/view/3733. Acesso em: 25 jun. 2022.