Gaya APA
Zimmerer, T, W. (2005).
Essentials of entrepreneurship and small business (4th ed.).
Upper Saddle River:
Prentice Hall.
Gaya MLA
Zimmerer, Thomas, W..
"Essentials of entrepreneurship and small business".
4th ed.
Upper Saddle River:
Prentice Hall,
2005.
Buku/Printed Material.