Gaya APA
Samuelson, P, A., Nordhaus, W, D.
(1992).
Macroeconomics
(
Ed. 4)
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Newyork:
McGraw-Hill.
Gaya MLA
Samuelson, Paul, A., Nordhaus, William, D.
"Macroeconomics".
Ed. 4
Newyork:
McGraw-Hill,
1992.
Text.