edited by Robert W. Tucker, Charles B. Keely and Linda Wrigley
Westview Press, 1992
Buku Teks
Department of the Army Field Manual
Dorset Press, 2000
Buku Teks
by Deepa Narayan ... [et al.]
Oxford University Press, 2000
Buku Teks
Paust, Jordan J.
St. Paul Minn, 2000
Buku Teks
Eckstein, Otto
McGraw-Hill, 1983
Buku Teks