Aliaga, M., & Gunderson, B. (1998). Interactive statistics (prelim ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Aliaga, Martha, agus Brenda Gunderson. Interactive Statistics. prelim ed. Upper Saddle River, New Jersey: Prentice-Hall, 1998.
Lua MLA (9ú heag.)Aliaga, Martha, agus Brenda Gunderson. Interactive Statistics. prelim ed. Prentice-Hall, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.