Gaya APA

Hatmawan, A., A., Syarif, N. (2011). Bussines: a changing world; 18th ed. (18). New York: McGraw-Hill/Irwin.

Gaya MLA

Hatmawan, A., A., Syarif, N.. Bussines: a changing world; 18th ed.. 18 New York: McGraw-Hill/Irwin, 2011. Reference.