1. Childress A. (2011). Understanding writing problems in young children: Contributions of cognitive skills to the development of written expression (Doctoral dissertation University of North Carolina at Chapel Hill). Retrieved from hhtps://cdr.lib.unc.edu
2. Executive functions and their disorders;Elliot R.;British Medical Bulletin,2003
3. Faul M. Xu L. Wald M. M. & Coronado V. (2010). Traumatic brain injury in the United States: Emergency department visits hospitalizations and deaths 2002-2006. Retrieved from Centers for Disease Control and Prevention website: http://www.cdc.gov/TraumaticBrainInjury/data/index.html
4. Clinical neurology and executive dysfunction;Filley C. M.;Seminars in Speech and Language,2000