1. Efron, B., Tibshirani, R. J., Efron, B. and Tibshirani, R. J. New York and Basel,Hong Kong: Marcel Dekeer,INC. Chapman & Hall. 1993
2. iffiths, W. 1989. Armidale, Australia: University of New England.
3. Hall, P. 1992. Springer.
4. Lütkepohl, H. and Lütkepohl, H. Springer-Verlag.
5. Lütkepohl, H. and Breitung, J. Edited by: Hei, C., Schumacher, J.M. and Praagman, C. 299–326. John Wiley.