Carer, J. and Musher K. (2014). Evaluation and treatment of speech and language disorders in children. UpToDate. Retrieved 12/31/14 from http://www.uptodate. com.
Effective Interventions for the Treatment of Speech Sound Disorders. Encyclopedia of Language and Literacy Development. http://literacyencyclopedia.ca/index.php?fa=items.show&topicId=17. Accessed 1/20/2013.
Child Speech and Language. American Speech-Language-Hearing Association | ASHA. Web. <http://www.asha.org/public/speech/disorders/ChildSandL.htm>. Accessed 1/20/2013.