Thompson, Brian
Balckstone Press Limited, s.a.
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1977
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1988
Buku Teks
Gellhorn, Ernest, author
West Publishing Company, 1972
Buku Teks
Jaffe, Louis L., author
Little, Brown, 1968
Buku Teks