Kastantin, Joseph T., author
Quorum Books, 1988
Buku Teks
Saffady, William, author
Arma Internasional, 2004
Buku Teks
Biringer, Betty E., author
John Wiley & Sons, 2007
Buku Teks
Wheeler, James E., author
Richard D. Irwin , 1981
Buku Teks
Diane Fraser, editor
Churchill livingstone , 2000
Buku Teks