1. Essentials of Removable Partial Denture Prosthesis;Applegate,1965
2. Glossary of Prosthodontic Terms;Academy of Denture Prosthetics;J. Pros. Dent.,1960
3. A Review of Some of the Problems Associated with Centric Relation;Kingery;J. Pros. Dent.,1952
4. The Maxillomandibular Relationship of Centric Relation;Kingery;J. Pros. Dent.,1959