Statistics for management and economics
by Collin J. Watson [and others]
Allyn and Bacon, 1993
 Buku Teks
Gwartney, James D.
Economics Private and public choice / James D. Gwartney, Richard L. Stroup
FL. The Dryden Press, 1995
 Buku Teks
Gwartney, James D.
Economics private and public choice/ James D. gwartney, Richard L. Stroup
Harcourt Brace Jovanovich, Publisher, 1987
 Buku Teks
Kahn, Alfred E.
The Economics of regulation : principles and institutions/ Alfred E. Kahn
John Wiley & Sons Inc, 1995
 Buku Teks
Gwartney, James D.
Economics : private and public choice / James D. Gwartney, Richard L. Stroup ; with the assistance of A.H. Studenmund
Harcourt Brace Jovanovich, Pub., 1990
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