PROWOTO, Joko; SASTRA, Gusdi; YANIS, Amel. Phonological Disorders of Children with Down Syndrome Based on the Level of Intelligence: A Case Study. OKARA: Jurnal Bahasa dan Sastra, [S. l.], v. 13, n. 1, p. 81–92, 2019. DOI: 10.19105/ojbs.v13i1.2276. Disponível em: https://siakaddev.iainmadura.ac.id/index.php/okara/article/view/2276. Acesso em: 31 jul. 2026.