UMAR, Umar; WIDODO, Arif. Analisis Kendala Guru SD Dalam Pembelajaran Matematika Pada Anak Tunagrahita Di Masa Pandemi Covid-19. Jurnal DIDIKA: Wahana Ilmiah Pendidikan Dasar, [S. l.], v. 7, n. 2, p. 239–249, 2021. DOI: 10.29408/didika.v7i2.3916. Disponível em: https://e-journal.hamzanwadi.ac.id/index.php/didika/article/view/3916. Acesso em: 1 may. 2024.