James D. Williams, editor
Wiley-Blackwell, 2009
Buku Teks
Cambridge University Press, 2010
eBooks
Brown, Bruce
Dickenson, 1969
Buku Teks
Foss, Sonja K., compiler
Waveland Press, 1985
Buku Teks
Sloane, Thomas O.
Oxford University Press, 2001
Buku Referensi