APA (7e ed.) Bronvermelding

COOPER DONALD R. (2006). BUSINESS RESEARCH METHODS (9TH.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.

Chicago (17e ed.) Bronvermelding

COOPER DONALD R. BUSINESS RESEARCH METHODS. 9TH. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2006.

MLA (9e ed.) Bronvermelding

COOPER DONALD R. BUSINESS RESEARCH METHODS. 9TH. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2006.