1. Encyclopedia;Mark,1972
2. (Ed), Handbook of Thermoplastics, Marcel Dekker, New York, Basel and Hong Kong (1997).
3. Kirk-Othmer Encyclopedia, 3rd edn, Vol 6, pp 683, vol 18, pp 832, Wiley-Interscience (1978).
4. and High Performance Polymers: Their Origin and Development, Elsevier, New York (1986).
5. (Ed), Handbook of Fiberglass and Advanced Plastics Composites, Van Nostrand Reinkold, New York (1989).