Jones, J. Morgan, author
Richard D. Irwin, 1977
Buku Teks
Haley, Charles W., author
McGraw-Hill, 1979
Buku Teks
Fishburn, Peter C., author
John Wiley & Sons, 1970
Buku Teks
edited by Sixto Rios
Kluwer, 1994
Buku Teks
Chamberlin, Edward Hastings, author
Harvard University Press, 1946
Buku Teks