Gaya APA

SEKARAN, U., BOUGIE, R. (). REFRENSI : RESEARCH METHODS FOR BUSINESS A SKILL BUILDING APPROACH FIFTH EDITION . : Wiley.

Gaya MLA

SEKARAN, UMA., BOUGIE, ROGER. "REFRENSI : RESEARCH METHODS FOR BUSINESS A SKILL BUILDING APPROACH FIFTH EDITION". : Wiley, . Text.