Gaya APA

Sincich, J, T, P, G, B, T. (2005). Statistics for Business and Economics (9rd.Ed). USA: Prentice Hall.

Gaya MLA

Sincich, James, T.McClave,, P., George, Benson,, Terry. "Statistics for Business and Economics". 9rd.Ed USA: Prentice Hall, 2005. Text.