Cita APA (7th ed.)

ZIKMUND I , B. C. (2013). BUSINESS RESEARCH METHODS (9TH.). CENGAGE.

Cita Chicago (17th ed.)

ZIKMUND I , BABIN CARR. BUSINESS RESEARCH METHODS. 9TH. NEW DELHI: CENGAGE, 2013.

Cita MLA (9th ed.)

ZIKMUND I , BABIN CARR. BUSINESS RESEARCH METHODS. 9TH. CENGAGE, 2013.