References
Aliaga, Martha & Gunderson, Brenda. Interactive Statistics (Preliminary Edition). Prentice Hall, 1998.
Scheaffer, R.L., Gnanadesikan, M, Watkins, Ann, & Witmer, J.A. Activity-Based Statistics. Springer, 1996.
Rossman, Allan J. & Chance, Beth L. Workshop Statistics: Discovery with Data and MINITAB. 2nd Edition. Key College Publishing, 2001.