Gaya APA
RICHARD SIHITE, S.Sos. (1974).
HOTEL MANAGEMENT .
SURABAYA:
SIC.
Gaya Chicago
RICHARD SIHITE, S.Sos.
HOTEL MANAGEMENT.
SURABAYA:
SIC,
1974.
Text.
Gaya MLA
RICHARD SIHITE, S.Sos.
HOTEL MANAGEMENT.
SURABAYA:
SIC,
1974.
Text.
Gaya Turabian
RICHARD SIHITE, S.Sos.
HOTEL MANAGEMENT.
SURABAYA:
SIC,
1974.
Print.