SUPRIYADI, Supriyadi. Quality of bahasa Indonesia textbooks used in junior high school. Jurnal Kependidikan: Penelitian Inovasi Pembelajaran, [S. l.], v. 2, n. 1, p. 39–55, 2018. DOI: 10.21831/jk.v2i1.10122. Disponível em: https://journal.uny.ac.id/index.php/jk/article/view/10122. Acesso em: 17 may. 2025.