Aranson, Peter H.
Winthrop Publishers, 1981
Buku Teks
edited by Howard J. Wiarda, Harvey F. Kline
Westview Press, 2007
Buku Teks
Wiarda, Howard J., author
Wardword, 1995
Buku Teks
Wynia, Gary W., author
Cambridge University Press , 1984
Buku Teks
Bruce Michael Bagley, Roberto Alvarez, and Katherine J. Hagedorn, editors
Westview Press, 1985
Buku Teks