Journal of Speech and Hearing Disorders, November 1990, Vol. 55:771-778. doi:10.1044/jshd.5504.771
Journal of Speech and Hearing Disorders, February 1983, Vol. 48:62-69. doi:10.1044/jshd.4801.62
Journal of Speech, Language, and Hearing Research, June 1978, Vol. 21:338-349. doi:10.1044/jshr.2102.338
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