1. Wool: Science and Technology;Höcker,2002
2. J.A. Rippon, in: D.M. Lewis (Ed.), Wool Dyeing, Society of Dyers and Colourists, Bradford, 1992, pp. 1–51.
3. Essential Fibre Chemistry;Carter,1971
4. The cell membrane complex and its influence on the properties of the wool fibre;Leeder;Wool Sci. Rev.,1986
5. Handbook of Fiber Chemistry;Jones,2006