Gaya APA
Anastasia, D., Fandy, T.
(2007).
E-Business
(
2)
.
Yogyakarta:
Andi Offset.
Gaya MLA
Anastasia, Diana., Fandy, Tjiptono.
"E-Business".
2
Yogyakarta:
Andi Offset,
2007.
Text.