Santerre, Rexford E., author
South-Western Cengage Learning, 2013
Buku Teks
Hicks, Lanis L., author
Jones & Bartlett Learning, 2014
Buku Teks
Folland, Sherman, author
Prentice-Hall, 2001
Buku Teks
edited by Andrew M. Jones
Edward Elgar, 2012
Buku Teks
Ruchlin, Hirsch S., author
Charles C. Thomas, 1973
Buku Teks