Gaya APA
40 Days in europe. (2007).
Yogyakarta:
Tarebooks.
Gaya Chicago
40 Days in europe.
.
Yogyakarta:
Tarebooks,
2007.
NONFIKSI.
Gaya MLA
40 Days in europe.
.
Yogyakarta:
Tarebooks,
2007.
NONFIKSI.
Gaya Turabian
40 Days in europe.
Yogyakarta:
Tarebooks,
2007.
NONFIKSI.