“Communicative Intervention in Population With down Syndrome and Autism through Increasing and Alternative Communication Andcommunication Technologies”. REVISTA CIENTÍFICA SIGNOS FÓNICOS 7, no. 1 (January 8, 2021): 18–35. Accessed October 16, 2025. https://ojs.unipamplona.edu.co/index.php/cdh/article/view/1161.