Dubovy, Joseph, author
McGraw-Hill, 1978
Buku Teks
D. Jennings ... [et al.]
Edward Arnold, 1995
Buku Teks
Bureau of Naval Personnel
Coles, 1980
Buku Teks
Gray, Paul E., author
Wiley Eastern, 1969
Buku Teks
Gates, Earl D., 1945-, author
Delmar Cengage Learning, 2012
Buku Teks