Gaya APA

COOPER, D, R., SCHINDLER, P, S. (2001). Business research methods (7th. ed.). Boston: McGraw-Hill Irwin.

Gaya MLA

COOPER, Donald, R.., SCHINDLER, Pamela, S.. "Business research methods". 7th. ed. Boston: McGraw-Hill Irwin, 2001. Buku.