Gaya APA
Sekaran, Uma. (2006).
Research Methods For Business edisi 4 (4th ed.).
Jakarta:
Salemba Empat.
Gaya Chicago
Sekaran, Uma.
Research Methods For Business edisi 4.
4th ed.
Jakarta:
Salemba Empat,
2006.
Text.
Gaya MLA
Sekaran, Uma.
Research Methods For Business edisi 4.
4th ed.
Jakarta:
Salemba Empat,
2006.
Text.
Gaya Turabian
Sekaran, Uma.
Research Methods For Business edisi 4.
4th ed.
Jakarta:
Salemba Empat,
2006.
Print.