Thurow, Lester C.
HarperCollins, 1999
Buku Teks
Hansen, Alvin Harvey, 1887-1975
W.W. Norton, 1951
Buku Teks
Goldsmith, Raymond W.
Prenceton University Press, 1955
Buku Teks
Blume, Marshall E.
John Wiley & Sons, 1978
Buku Teks
Cohen, Jerome B.
Richard D. Irwin, 1973
Buku Teks