Wright, Peter
Erlangga, 1988
Buku Teks
de Groen, Frances, author
Pan Books, 1981
Buku Teks
Wright, Frank Lloyd, author
Bramhall House, [19?-]
Buku Teks
Kaufmann, Edgar
[T.t.] Horizon Press 1960
Buku Teks
Walker, Shirley
Oxford University Press, 1982
Buku Referensi