Gwartney, James D.
Economics : private and public choice
Harcourt Brace Jovanovich, 1990
 Buku Teks SO
Gwartney, James D.
Economics private and public choice
The Reyden Press, 2000
 Buku Teks SO
Gwartney, James D.
Economics private and public choice
Harcourt Brace Jovanovich, 1987
 Buku Teks SO
Becker, William E.
A complement to choice an introduction to economics
Prentice-Hall, 1971
 Buku Teks SO
Atkinson, Lloyd C.
Economics, the science of choice
Richard D. Irwin, 1982
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