Gaya APA
Hayter, R., Frediani, P. (1993).
Careers and training in hotels, catering and tourism .
Oxford:
Butterworth-Heinemann.
Gaya MLA
Hayter, Roy., Frediani, Pam.
"Careers and training in hotels, catering and tourism".
Oxford:
Butterworth-Heinemann,
1993.
BUKU.