Finley, Kay Thomas
John Wiley & Sons, 1980
Buku Teks
McMurry, John
Brooks/Cole, 2007
Buku Teks
Harwood, Laurence M.
Erlangga, 2009
Buku Teks
Fleming, Ian
Gadjah Mada University Press , 1997
Buku Teks
Warren, Stuart
Gadjah Mada University Press, 1994
Buku Teks