Hutson, Lorna, author
Routledge, 1997
Buku Teks
edited by Peter H. Ramsey
Methuen, 1971
Buku Teks
Cheney, Patrick, author
Wiley, 2011
Buku Teks
Edited, Suzanne Ferriss, Mallory Young
Routledge, 2006
Buku Teks
Allen, J. W., author
Methuen, 1951
Buku Teks