1. DCMA, Amer Inkmaker, June (1989).
2. ETAD/BCMA/VDMI/EPSOM, Safe Handling of Pigments, European Edition (1995).
3. Pigments for Inkmakers;Sanders,1989
4. Industrial Organic Pigments;Herbst,1993
5. Pigments — An Introduction to Their Physical Chemistry;Jones,1967