Essentials of entrepreneurship and small business management / Thomas N. Zimmerer ; Norman M. Scarborough. (2008). Upper Saddle River, NJ: Pearson Education, c.
Essentials of entrepreneurship and small business management / Thomas N. Zimmerer ; Norman M. Scarborough. 4th ed.. Upper Saddle River, NJ: Pearson Education, c, 2008. Buku Wajib.