Morgan, Angela; Fisher, Simon E.; Scheffer, Ingrid; Hildebrand, Michael (1993), Adam, Margaret P.; Feldman, Jerry; Mirzaa, Ghayda M.; Pagon, Roberta A. (eds.), "FOXP2-Related Speech and Language Disorder", GeneReviews, Seattle (WA): University of Washington, PMID27336128, retrieved 2025-03-11
Morgan, Angela; Fisher, Simon E.; Scheffer, Ingrid; Hildebrand, Michael (1993), Adam, Margaret P.; Feldman, Jerry; Mirzaa, Ghayda M.; Pagon, Roberta A. (eds.), "FOXP2-Related Speech and Language Disorder", GeneReviews, Seattle (WA): University of Washington, PMID27336128, retrieved 2025-03-11
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Ziegler, Wolfram (2008-01-01), "Chapter 13 Apraxia of speech", Handbook of Clinical Neurology, Neuropsychology and Behavioral Neurology, vol. 88, Elsevier, pp. 269–285, retrieved 2025-04-01
Ziegler, Wolfram (2008-01-01), "Chapter 13 Apraxia of speech", Handbook of Clinical Neurology, Neuropsychology and Behavioral Neurology, vol. 88, Elsevier, pp. 269–285, retrieved 2025-04-01
Ziegler, Wolfram (2008-01-01), "Chapter 13 Apraxia of speech", Handbook of Clinical Neurology, Neuropsychology and Behavioral Neurology, vol. 88, Elsevier, pp. 269–285, retrieved 2025-04-01