Arnold, 1999
Buku Teks
Rice, Paul F., author
Van Nostrand Reinhold, 1972
Buku Referensi
by Paul F. Rice, Edward S. Hoffman, David P. Gustafson, Albert J. Gouwens
Van Nostrand Reinhold, 1985
Buku Referensi
Rosen, Harold J., author
John Wiley & Sons, 1981
Buku Teks
David O. Friedrichs, editor
Ashgate, 1998
Buku Referensi