Gaya APA
Buttle, F., Bowie, D. (2004).
Hospitality marketing : an introduction .
Amsterdam:
Elsevier Butterworth Heinemann.
Gaya MLA
Buttle, Francis., Bowie, David.
"Hospitality marketing : an introduction".
Amsterdam:
Elsevier Butterworth Heinemann,
2004.
BUKU.