Susan M. Felch, editor
Cambridge University Press, 2018
Buku Teks
Farrington, Karen
Chancellor Pres, 1998
Buku Referensi
Cambridge University Press, 2013
Buku Teks
Cambridge University Press, 2013
Buku Teks
Sutherland, John, 1938-, author
Yale University Press, 2013
Buku Teks