David, R. A., Dennis, J. S., Thomas, A. W., Jeffrey, D. C., James, J. C., Michael, J. F., & Jeffrey, W. O. (2023). Statistics for Business & Economics (14th Edition). Cengage Learning, Inc.

David, R. Anderson, J. Sweeney Dennis, A. Williams Thomas, D. Camm Jeffrey, J. Cochran James, J. Fry Michael, và W. Ohlmann Jeffrey. Statistics for Business & Economics (14th Edition). Cengage Learning, Inc, 2023.

David, R. Anderson, et al. Statistics for Business & Economics (14th Edition). Cengage Learning, Inc, 2023.