Gaya APA
Goverment and Business. (1981).
Amerika:
South-Western College Publishing.
Gaya Chicago
Goverment and Business.
Ed. 4.
Amerika:
South-Western College Publishing,
1981.
.
Gaya MLA
Goverment and Business.
Ed. 4.
Amerika:
South-Western College Publishing,
1981.
.
Gaya Turabian
Goverment and Business.
Amerika:
South-Western College Publishing,
1981.
.