Gaya APA
Keegan, W, J., Mark, C, B.
(1997).
Principles of Global Marketing
.
USA:
Prentice hall, INC.
Gaya MLA
Keegan, Warren, J.., Mark, C, Breen.
"Principles of Global Marketing".
USA:
Prentice hall, INC,
1997.
Texts.