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2. Pittman, J. F. T., Wood, R. D., Zienkiewicz, O. C. and Alexander, J. M, Numerical analysis of forming processes, J. Wiley & sons, Chichester, Sussex, 1984.
3. Pearson, J. R. A. and Richardson, S. M. (eds), Computational analysis of polymer processing, Applied Science Publishers, London1983.
4. White, J. L., ‘Dynamics, heat transfer and rheological aspects of melt spinning: a critical review’, poly. Engng rev., 1, 1981, 297–362.
5. (a) Pearson, J. R. A., Mechanical principles of polymer melt processing, Pergamon press, Oxford, 1966, pp. 60–3.(b) Ibid., pp. 128–34