Gaya APA
SAWYER,W.charles. (2003).
International Economics .
BJ:
Pearson Education.
Gaya Chicago
SAWYER,W.charles.
International Economics.
BJ:
Pearson Education,
2003.
Monograf.
Gaya MLA
SAWYER,W.charles.
International Economics.
BJ:
Pearson Education,
2003.
Monograf.
Gaya Turabian
SAWYER,W.charles.
International Economics.
BJ:
Pearson Education,
2003.
Monograf.