1. Aleksandrov P. S. (1960). Combinatorial topology Dover Albany N.Y.
2. Bathe K. J. (1996). Finite element procedures 4th Ed. Prentice-Hall Englewood Cliffs N.J.
3. Variational methods for the solution of problems of equilibrium and vibrations
4. Dasgupta G. (1989). “Boundary elements with macro shape functions.” Advances in boundary elements C. Brebbia and J. Connor eds. Computational Mechanics Publications Ashurst Southampton U.K. 253–262.
5. Approximate dynamic responses in random media.;Dasgupta G.;Acta Mech.,1992