Blanchard, Oliver
Prentice-Hall, 1997
Buku Teks
Mankiw, N. Gregory
Worth, 1994
Buku Teks
Morley, Samuel A.
The Dryden Press, 1984
Buku Teks
Samuelson, Paul A. (Paul Anthony), 1915-2009
New York, 2005
Buku Teks
Lindauer, John
John Wiley & Sons, 1971
Buku Teks