Cushman, Robert F., author
An Aspen Publication, 1983
Buku Teks
Beckerling, Louis
Euromoney Publications, 1996
Buku Teks
Aaron, Henry J., author
Brookings Institution, 1991
Buku Teks
Kuznets, Simon Smith, 1901-, author
Princeton University Press, 1961
Buku Teks
Finnerty, John D., author
John Wiley & Sons, 2013
Buku Teks