APA-viite (7. p.)

Cooper, D. (2006). BUSINESS RESEARCH METHODS (9th.). McGraw Hill.

Chicago-viite (17. p.)

Cooper, Donald. BUSINESS RESEARCH METHODS. 9th. New Delhi: McGraw Hill, 2006.

MLA-viite (9. p.)

Cooper, Donald. BUSINESS RESEARCH METHODS. 9th. McGraw Hill, 2006.