Kevin M McDermott; Matthew Stibbe
Berg, 2006
Buku Teks
Daniels, Robert V., author
Routledge, 1994
Buku Teks
edited by John Wilson Lewis
Stanford University Press, 1974
Buku Teks
edited by Maggie Toy
Academy Editions, 1996
Buku Teks
East, Roger, author
Pinter Publishers, 1997
Buku Teks