Sekaran, U., & Bougie, R. (2009). Research methods for business: A skiil- building approach (5 nd.ed.). Amerika Serikat: Jhon Willey & Sons.
Chicago Style CitationSekaran, Uma, and Roger Bougie. Research Methods for Business: A Skiil- Building Approach. 5 nd.ed. Amerika Serikat: Jhon Willey & Sons, 2009.
MLA CitationSekaran, Uma, and Roger Bougie. Research Methods for Business: A Skiil- Building Approach. 5 nd.ed. Amerika Serikat: Jhon Willey & Sons, 2009.
Warning: These citations may not always be 100% accurate.