Seronsy, Cecil, author
Twayne, 1967
Buku Teks
Read, Herbert, author
Faber & Faber, 1964
Koleksi Publik
Uhlmann, Anthony, author
Cambridge University Press, 2009
eBooks
Gordon and Breach Publishers, 1999
Buku Teks
Pattie, David, author
Routledge , 2000
Buku Teks