Lewis Publishers, 1999
Buku Teks
Samuelson, Paul Anthony, 1915-2009
McGraw-Hill, 2010
Buku Teks SO
Sloman, John
Harvester Wheatsheaf, 1994
Buku Teks
Lipsey, Richard G.
Harper Collin, 1996
Buku Teks
Albrecht, William P.
Prentice-Hall, 1979
Buku Teks SO