Gilmer, B. von Haller (Beverly von Haller), 1909-1994, author
McGraw-Hill, 1967
Buku Teks
Brown, A.J., author
George Allen & Unwin, 1951
Buku Teks
Schonberger, Richard John, author
N.Y. The Free Press, 1986
Buku Teks
edited by Robert Stimson and Kingsley E. Haynes
Edward Elgar, 2012
Buku Teks
by Robert Desjarlais [and others]
Oxford University Press, 1995
Buku Teks