Prince, Thomas R.
Irwin, 1970
Buku Teks
Elle, Klaus, author
Springer, 2011
eBooks
Merchant, Kenneth A., author
Prentice-Hall, 1998
Buku Teks
Carlson, Reinhold A., author
R.S. Means, 1991
Buku Teks
by Thomas B. Glans [and others]
Holt, Rinehart and Winston, 1968
Buku Teks