LEXICAL-GRAMMATICAL SPEECH DISORDERS OF MENTALLY RETARDED STUDENTS AND THE CHARACTERISTICS OF LOGOPEDIC WORK TO CORRECT THEM. International Bulletin of Applied Science and Technology, [S. l.], v. 5, n. 7, p. 45–50, 2025. DOI: 10.37547/. Disponível em: https://researchcitations.com/index.php/ibast/article/view/5833. Acesso em: 31 aug. 2025.