Huff, Toby E., 1942-, author
Cambridge University Press, 2003
Buku Teks
Fitzgerald, Robert, 1959-, author
Cambridge University Press, 2015
Buku Teks
Tallett, Frank
London Routledge 1992,
Buku Teks
Fischer, Fritz, author
W.W. Norton & Company, 1967
Buku Teks
Fredericks, Pierce, author
E.P. Dutton, 1960
Buku Teks