1. Bathe, K.J. - Finite Element Procedures in Engineering Analysis, Prentice Hall, New Jersey, 1982.
2. Choi, C.K. and Kim, S.H., ‘Improvement of Degenerated Plate/ Shell Element’, Proc. of the US-Korea Seminar/Workshop on Critical Eng. system, 1987
3. Structural Research Series No. 401;CK Choi,1973
4. Cook, R.D. - Concepts and Applications of Finite Element Analysis, John Willy & Sons, New York, 1981.
5. Gupta, A.K. ‘A Finite Element for Transition from a fine to a Coarse Grid’, Int. J’ for Numer. Meth. in Eng. 12 (1978), 35–45