Gaya APA
drs.h.sumanta, M., boyd, J. (1997).
Principles of global marketing (International Edition).
New Jersey:
prentice-hall international.
Gaya MLA
drs.h.sumanta, M.pd., boyd, James.
"Principles of global marketing".
International Edition
New Jersey:
prentice-hall international,
1997.
Text.