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Treffert. D, (n.d). Nonverbal Learning Disorder. Retrieved December 25, 2012, from: https://www.wisconsinmedicalsociety.org/professional/savant-syndrome/resources/articles/nonverbal-learning-disorder/
Vacca. D, (November 3, 2001). Confronting the Puzzle of Nonverbal Learning Disabilities. Retrieved December 25, 2012, from: http://www.nldline.com/dorothy_vacca.htm
Eric Digest, December 1, 2001. Nonverbal Learning Disability: How To Recognize It and Minimize Its Effects. Retrieved December 25, 2012, from: http://www.eric.ed.gov/PDFS/ED461238.pdf
Palambo J, (October 21, 1994). Descriptive Profile of Children with Nonverbal Learning Disabilities. Retrieved December 24, 2012, from: http://www.nldline.com/palombo.htm
Sharon. M, (n.d). Asperger’s Syndrome & Nonverbal Learning Disabilities. Retrieved 26 December, 2012, from: http://www.autismsite.ca/files/AS%20vs%20NVLD%20version%202-7'05.pdf
Treffert. D, (n.d). Nonverbal Learning Disorder. Retrieved December 25, 2012, from: https://www.wisconsinmedicalsociety.org/professional/savant-syndrome/resources/articles/nonverbal-learning-disorder/
Vacca. D, (November 3, 2001). Confronting the Puzzle of Nonverbal Learning Disabilities. Retrieved December 25, 2012, from: http://www.nldline.com/dorothy_vacca.htm