1. Anderson, Nate. "Win 7's Built-In Speech Recognition: A Review." Arstechnica: TECHNOLOGY LAB / INFORMATION TECHNOLOGY. May 31, 2010. http://arstechnica.com/information-technology/2010/05/win-7s-built-in-speech-recognition-a-review/.
2. "Babbage: Divining Reality From the Hype." The Economist. August 27, 2014. http://www.economist.com/blogs/babbage/2014/08/difference-engine-2.
3. Baker, Janet M., Deng,Li Glass, James, Khudanpur, Sanjeev , Lee, Chin-Hui, Morgan, Nelson and O'Shaughnessy, Douglas. 2009. "Research Developments and Directions in Speech Recognition and Understanding, Part 1." IEEE Signal Processing Magazine 75-80.
4. Barbara A. Lafford, Peter A. Lafford, and Julie Sykes. 2007. "Entre dicho y hecho …: An Assessment of the Application of Research from Second Language Acquisition and Related Fields to the Creation of Spanish CALL Materials for Lexical Acquisition." Calico 24: 497-529.
5. Chapelle, Carol A. 1998. "Multimedia CALL: Lessons to be learned from research on instructed sla." Language Learning & Technology 2: 22-34.