Brepohl, Erhard: The Theory and Practice of Goldsmithing; translated by Charles Lewton-Brain and Roy Ysla Portland Maine: Brynmorgen Press, 2001
Untracht, Oppi: Jewelry Concepts and Technology New York: Doubleday, 1985
Seppa, Heikki: Form Emphasis for Metalsmiths Kent, Ohio: Kent State University Press, 1978
O’Connor, Harold: The Jeweler’s Bench Reference Salida, CO: Dunconnor Books, 1977
McCreight, Tim: The Complete Metalsmith Worcester, MA: Davis Publications, 1991
Hall, Cally: Smithsonian Handbooks: Gemstones New York, NY: Dorling Kindersley, 1994
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