Gaya APA

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

Gaya MLA

Hatmawan, Aglis, Andhita., Syarif, Nasrul. "Bussines: a changing world; 18th ed.". 18 New York: McGraw-Hill/Irwin, 2011. Reference.