Natov, Roni
Routledge, 2006
Buku Teks
Leon Van Schaik, editor
Wiley Academy, 2002
Buku Teks
Elkins, James
Cornell University Press, 1994
Buku Teks
Mcinnes, Graham
Toronto The Macmillan Co of Canada Limited 1950
Buku Teks
University of Toronto Press, 2014
Buku Teks