Zoller, Elisabeth, author
Martinus Nijhoff, 2008
Buku Teks
Mallinson, Vernon
London Heinemann 1960
Buku Teks
Corstius, Jan Brandt, author
Random House, 1968
Buku Teks
edited by Jon Pierre
Edward Elgar, 1994
Buku Teks
Peters, B. Guy, author
Routledge, 2009
Buku Teks