1. 2022. American Speech-Language-Hearing Association. https://www.asha.org/.
2. A Statistical Basis for Speech Sound Discrimination
3. Interdependence as a Frame for Assistive Technology Research and Design
4. David R Beukelman Pat Mirenda 1998. Augmentative and alternative communication. Paul H. Brookes Baltimore.
5. Stefan Blomkvist. 2005. Towards a model for bridging agile development and user-centered design. In Human-centered software engineering—integrating usability in the software development lifecycle. Springer, 219–244.