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ronald k sommers
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Articulation disorders
Ronald K. Sommers · Prentice-Hall
220 sayfa · 1983
Articulation disorders / Articulation disorders in children / Articulation (education) / Articulation Disorders / Child
Factors in the effectiveness of articulation therapy with educable retarded children
Ronald K. Sommers · U.S. Office of Education, Bureau of Research
66 sayfa · 1969
Children with mental disabilities / Language / Speech therapy