Gaya APA

Cooper, Donald R. (2006). Business research methods (9e). Boston: McGraw Hill.

Gaya Chicago

Cooper, Donald R. Business research methods. 9e Boston: McGraw Hill, 2006. CD ROM.

Gaya MLA

Cooper, Donald R. Business research methods. 9e Boston: McGraw Hill, 2006. CD ROM.

Gaya Turabian

Cooper, Donald R. Business research methods. 9e Boston: McGraw Hill, 2006. CD ROM.