1. Accuracy of casts produced from seven rubber impression materials;Sawyer;JADA,1973
2. Accuracy of casts produced from three classes of elastomer impression materials;Sawyer;JADA,1974
3. Phillips, R.W. Skinner’s science of dental materials, ed 7. Philadelphia, W. B. Saunders Co., p 136.
4. Marginal fit of gold inlay castings;Christianson;J Prosthet Dent,1966
5. Guide to dental materials and devices;Council on Dental Materials and Devices,1975