Thompson, Lindsay H. S.
Hyland House, 1989
Buku Teks
Roosevelt, Eleanor, author
Harper & Brothers, 1949
Buku Teks
Thompson, Leon Whitey
Thompson , 1995
Buku Teks
MacRae, C.F., author
Twayne, 1968
Buku Teks
Wilde, W.H., author
Oxford University Press, 1972
Buku Teks