Jamie Benidickson ... [et al.]., editor
Edward Elgar, 2011
Buku Teks
Stewart, Richard B.
The Bobbs-Merrill Company,Inc., 1978
Buku Teks
May, James R, author
Cambridge University Press, 2014
eBooks
Edited by Cinnamon P. Carlarne, Kevin R. Gray, Richard G. Tarasofsky
Oxford University Press, 2016
Buku Teks
Manchester University Press , 1995
Buku Teks