Gaya APA
Ecomics of Social Issue. (1982).
USA:
Business Publication.
Gaya Chicago
Ecomics of Social Issue.
Ed.5.
USA:
Business Publication,
1982.
.
Gaya MLA
Ecomics of Social Issue.
Ed.5.
USA:
Business Publication,
1982.
.
Gaya Turabian
Ecomics of Social Issue.
USA:
Business Publication,
1982.
.