Samuelson, P. A. (1998). Economics (16th ed.). McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)Samuelson, Paul A. Economics. 16th ed. Boston: McGraw-Hill, 1998.
Tohutoro MLA (9th ed.)Samuelson, Paul A. Economics. 16th ed. McGraw-Hill, 1998.
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