1. Biological Foundations of Language;Lenneberg,1957
2. Obturator of Choice for Congenital Cleft Palate;Schalit;Am. J. Orthod.,1946
3. Complete Denture Prosthodontics;Sharry,1968
4. The Effects of a Dental Prosthetic Appliance on the Quality of the Voice; An Experimental Study;Spangenberg,1937
5. Diagnosis and Appraisal of Communication Disorders;Darley,1964