1. Archer D. Wilson A. &Rayson P.(2002).Introduction to the USAS category system. Retrieved fromhttp://ucrel.lancs.ac.uk/usas/usas%20guide.pdf
2. Prosody and idioms in English
3. Working Memory
4. Incidental vocabulary acquisition from reading, reading‐while‐listening, and listening to stories;Brown R.;Reading in a Foreign Language,2008