Gaya APA

Barringer, B, R., Ireland, R, D. (2012). Entrepreneurship : successfully launching new ventures . Upper Saddle River: Prentice Hall.

Gaya MLA

Barringer, Bruce, R.., Ireland, R., Duane. "Entrepreneurship : successfully launching new ventures". Upper Saddle River: Prentice Hall, 2012. Buku/Printed Material.