Gaya APA
Complete business statistics. (2002).
Boston:
McGraw-Hill.
Gaya Chicago
Complete business statistics.
5th.
Boston:
McGraw-Hill,
2002.
Buku.
Gaya MLA
Complete business statistics.
5th.
Boston:
McGraw-Hill,
2002.
Buku.
Gaya Turabian
Complete business statistics.
Boston:
McGraw-Hill,
2002.
Buku.