Gaya APA

International business : the challenge of global competition / Donald A. Ball ... [et al.]. (2011). New York, NY: McGraw-Hill/Irwin, c.

Gaya MLA

International business : the challenge of global competition / Donald A. Ball ... [et al.]. . New York, NY: McGraw-Hill/Irwin, c, 2011. Buku Wajib.