1. The congenital cleft palate deformity;Graber;J.A.D.A.,1954
2. Ueber die Verschliessung des Schlundes beim Sprechen;Passavant,1863
3. A note on the muscles of the palate and the superior constrictor;Whillis;J. Anat.,1930
4. Movements of the soft palate, with special reference to function of tensor palati muscle;Wardill;Surg., Gynec. & Obst.,1936
5. A serial radiographic study of velopharyngeal closure and tongue position in certain vowel sounds. Master’s thesis;Williams,1951