1. Elements of dental materials for dental hygienists and assistants;Phillips,1994
2. Phillips’ science of dental materials;Anusavice,1996
3. Restorative dental materials;Craig,1997
4. Factors affecting the surface of stone dies poured in hydrocolloid impressions;Phillips;J Prosthet Dent,1952
5. Scanning electron microscopy of setting gypsum;Winkler;J Dent Res,1990