Gaya APA
Undoyono, B.
(2009).
English for Bussiness Negotiation and administration
(
-)
.
Jakarta_:
Kesiant Blanc.
Gaya MLA
Undoyono, Bambang.
"English for Bussiness Negotiation and administration".
-
Jakarta_:
Kesiant Blanc,
2009.
Buku Teks.