1. (1988) Selected Powder Diffraction Data for Education and Training, Search Manual and Data Cards, JCPDS, International Center For Diffraction Data. In . Swarthmore : JCPDS.
2. Duwez, P. and Willens, R. and Klement, W., Jr. (1960) J. Appl. Phys., 31, pp. 1136.
3. Klement, W., Jr. and Willens, R. and Duwez, P. (1960) Nature, 187, pp. 869.
4. Geller, Yu and Rakhshtadt, A.(1977) Science of Materials, 4th edn. Moscow : Mir Publishers.
5. Schreiber, E. and Anderson, O. and Soga, N.(1973) Elastic Constants, and their Measurements. McGraw Hill Book Company.