References
- Bryngelson , B. 1926 . A Study of the Articulatory Difficulties of Thirteen Stutterers , University of Iowa Thesis .
- Bluemel , C. S. 1913 . Stammering and Cognate Defects of Speech ,
- Hunt , James . 1861 . Stammering and Stuttering London
- Pelsma , John R. 1934 . Essentials of Speech ,
- Potter , Samuel D. L. 1882 . Speech and Its Defects Philadelphia
- Wyllie , John . 1894 . The Disorders of Speech Edinburgh
- Steer , M. and Johnson , W. in press . “An Objective Study of Certain Psychological Factors Associated with Severity of Stuttering,” . J. Abn. and Soc. Psychol. ,
- Travis , L. E. 1931 . Speech Pathology ,
- Bluemel , C. S. 1935 . Stammering and Allied Disorders ,
- Travis , L. E. and Johnson , W. 1934 . “Stuttering and the Concept of Handedness,” . Psychol. Rev. , XLI : 534 – 562 .
- This is a part of the University of Iowa program of research on stuttering under the direction of Professor Lee Edward Travis.