Ekelund, Robert B. Jr
Little, Brown & Co., 1986
Buku Teks
Mundell, Robert A.
Macmillan, 1968
Buku Teks
Heilbroner, Robert L., author
UI-Press, 1982
Buku Teks
Gwartney, James D.
FL. The Dryden Press, 1995
Buku Teks
Gwartney, James D.
Harcourt Brace Jovanovich, Publisher, 1987
Buku Teks