Gaya APA
Bowerman, B, L., O’Connell, R, T. (2003).
Business statistics in practice (ed. 3).
:
McGraw-Hill.New York.
Gaya MLA
Bowerman, Bruce, L.., O’Connell, Richard, T..
"Business statistics in practice ".
ed. 3
:
McGraw-Hill.New York,
2003.
Koleksi World Bank.