Gaya APA

SEKARAN, U., Bougie, R. (2013). Research Methods for Business : a Skill-Building Approach (Edisi 6). Dallas, USA: John Wiley & Sonc. Inc..

Gaya MLA

SEKARAN, Uma., Bougie, Roger. "Research Methods for Business : a Skill-Building Approach". Edisi 6 Dallas, USA: John Wiley & Sonc. Inc., 2013. Text.