Hynes, J. Dennis, author
The Bobbs-Merill Company, 1974
Buku Teks
Hynes, J. Dennis, author
The Michie Company, 1994
Buku Teks
Whaley, Douglas J.
Little, Brown & Co., 1993
Buku Teks
Phillips, Jerry J.
The Michie Company, 1994
Buku Teks
Gustafson, Charles H.
West Publishing Co., 1997
Buku Teks