Gaya APA
Principle Of Economic. (1965).
Amerika:
Holt, Rinehart And Winston.
Gaya Chicago
Principle Of Economic.
Ed. 2.
Amerika:
Holt, Rinehart And Winston,
1965.
.
Gaya MLA
Principle Of Economic.
Ed. 2.
Amerika:
Holt, Rinehart And Winston,
1965.
.
Gaya Turabian
Principle Of Economic.
Amerika:
Holt, Rinehart And Winston,
1965.
.