Gaya APA
Adha, K.
(2013).
Step By Step Bisnis Tour & Travel
(
Ed. 1)
.
Yogyakarta:
Buku Pintar.
Gaya MLA
Adha, Kholifatul.
"Step By Step Bisnis Tour & Travel".
Ed. 1
Yogyakarta:
Buku Pintar,
2013.
Text.