1. Theory and Practice of Precision Attachment, Removable Partial Dentures;Baker,1981
2. The use of the semiprecision rest in removable partial dentures;Blatterfein;J. Prosthet. Dent.,1969
3. A stable base precision attachment partial denture, theories and principles;Clayton;Dent. Clin. North Am.,1980
4. Dental Laboratory Procedures: Fixed Partial Dentures;Eissmann,1981
5. McCrackens: Removable Partial Prosthodontics;Henderson,1981