Power, Jonathan
Longman, 1971
Buku Teks
Samuelson, Paul Anthony, 1915-2009
McGraw-Hill, 2010
Buku Teks
Lipsey, Richard G.
Harper Collin, 1996
Buku Teks
Albrecht, William P.
Prentice-Hall, 1979
Buku Teks
Adreson, W. H. Locke
Prentice Hall of India, 1986
Buku Teks