Romanowitz, H. Alex, author
John Wiley & Sons, 1968
Buku Teks
Sprott, Julien C., author
John Wiley & Sons, 1981
Buku Teks
Floyd, Thomas L., author
Prentice-Hall, 1998
Buku Teks
Bureau of Naval Personnel
Coles, 1980
Buku Teks
Gray, Paul E., author
Wiley Eastern, 1969
Buku Teks