Friedman, Milton, 1912-2006
Essays in positive economics / Milton Friedman
The University of Chicago Press , 1953
 Buku Teks
Cairncross, Alec
Introduction of economics
Butterworth, 1960
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Johnson, Alvin S.
Introduction to economics
Hearh & Co., 1911
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Morgan, Theodore
Introduction to economics
Prentice-Hall, 1950
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Slavin, Stephen
Introduction to economics
Richard D. Irwin, 1991
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