Gaya APA
Essentials of Entrepreneurship. (2003).
New Jersey:
John Wiley&Sons.
Gaya Chicago
Essentials of Entrepreneurship.
.
New Jersey:
John Wiley&Sons,
2003.
Buku.
Gaya MLA
Essentials of Entrepreneurship.
.
New Jersey:
John Wiley&Sons,
2003.
Buku.
Gaya Turabian
Essentials of Entrepreneurship.
New Jersey:
John Wiley&Sons,
2003.
Buku.