1. Glossary of prosthodontic terms;Academy of Prosthodontics,1994
2. Occlusal plane relation to facial type;Augsburger;J Prosthet Dent,1953
3. The occlusal plane in relation to facial types;Hartono;J Prosthet Dent,1967
4. Syllabus of complete dentures;Hearwell,1974
5. Syllabus of complete dentures;Hearwell,1974