YUSUP, M.; WITARSA, R.; MASRUL, M. Kedisiplinan Waktu Mengajar Guru dan Penggunaan Media Pembelajaran di Sekolah Dasar. Journal of Education Research, [S. l.], v. 4, n. 3, p. 937–943, 2023. DOI: 10.37985/jer.v4i3.278. Disponível em: https://jer.or.id/index.php/jer/article/view/278. Acesso em: 2 jul. 2025.