Gaya APA
Venneri, A.
(2005).
Balls!, 6 rules for winning today's business game : Alexi Venneri
.
New York:
John Wiley.
Gaya MLA
Venneri, Alexi.
"Balls!, 6 rules for winning today's business game : Alexi Venneri".
New York:
John Wiley,
2005.
Buku.