Gaya APA
BALL,Donald A. (2002).
International Business (6th.ed).
New York:
McGraw-Hill Irwin.
Gaya Chicago
BALL,Donald A.
International Business.
6th.ed
New York:
McGraw-Hill Irwin,
2002.
Teks.
Gaya MLA
BALL,Donald A.
International Business.
6th.ed
New York:
McGraw-Hill Irwin,
2002.
Teks.
Gaya Turabian
BALL,Donald A.
International Business.
6th.ed
New York:
McGraw-Hill Irwin,
2002.
Teks.