Gaya APA
Doing business in singapore. (1991).
Singapore:
Ernst & Young.
Gaya Chicago
Doing business in singapore.
.
Singapore:
Ernst & Young,
1991.
Text.
Gaya MLA
Doing business in singapore.
.
Singapore:
Ernst & Young,
1991.
Text.
Gaya Turabian
Doing business in singapore.
Singapore:
Ernst & Young,
1991.
Print.