Davis, Simon J.M.
Routledge , 1995
Buku Teks
Reitz, Elizabeth J., 1946-
Springer, 2012
eBooks
Russell, Nerissa, 1957-, author
Cambridge University Press, 2012
Buku Teks
Cronyn, J.M.
Routledge , 1990
Buku Teks
Yeates, N. T. M.
Pergamon Press, 1975
Buku Teks