Essentials of entrepreneurship and small business management / Thomas W. Zimmerer ; Norman M. Scarborough. (2000). Upper Saddle River, NJ: Prentice-Hall, c.
Essentials of entrepreneurship and small business management / Thomas W. Zimmerer ; Norman M. Scarborough. 2nd ed.. Upper Saddle River, NJ: Prentice-Hall, c, 2000. Buku Wajib.