Dodd, Walter Fairleigh, 1880-1960, author
West Publishing, 1949
Buku Teks
Dobbyn, John F., author
West Publishing, 1989
Buku Teks
Miller, Roger LeRoy, author
West Educational Publishing, 1999
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1977
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1988
Buku Teks