3Clark, Kim B., and Takahiro Fujimoto. ( 1991 ) "Product Development Performance", Harvard Business School Press. Boston.
4Eppinger, Steven D. , and Karl T. Ulrich. ( 1995 ) "Product Design and Development", McGraw- Hill, Inc. New York.
5Liker, J. K., Kamath, R., Wasti, N. and Naganachi, M. (1995) "Integrating Suppliers into Fast -cycle Product Development" ,in Liker, J.K. Ettlie, J.E. and Campell, J.C. (eds), Engineering in Japan: Japanese Technology Management Practices, Oxford University Press, New York.
6Rothwell, R. and Zegveld, W. (1985) "Reindustrialisation and Technology", Longman, London.
7Takeuchi, H. and Nonake, I. (1986) "The New Product Development Game", Harvard Business Review, 64( 1 ), 137 - 46.
8Alpert, F. (1993) Breadth of Coverage for Intellectual Property Law: Encouraging Product Innovation by Broadening Protection, Journal of Product and Brand Management, 2,2.
9Feldwick, P. (1996) "Do We Really Need Brand Equity?" The Journal of Brand Management, 4, 1, 9 - 28.
10Graham, N. ( 1998 ) "Inventor cleans up with profits", Sunday Times, 1 March, 4, 16.