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3. and , Numerical Methods in Finite Element Analysis, Prentice-Hall, Englewood Cliffs, N. J., 1976.
4. ‘Nonlinear finite element transient response of concrete structures’, Ph. D. Thesis, University College Swansea, 1978, to be submitted.
5. The Finite element Method, 3rd edn, McGraw-Hill, London 1977.