Lizy Kurian John; Lieven Eeckhout
Boca Raton, 2006
Buku Teks
Sauer, Charles H., author
Prentice-Hall, 1981
Buku Teks
edited by Nicholas Benwell
Halsted Press, 1975
Buku Teks
Higginbottom, Gary N.
Artech House, 1998
Buku Teks
Schwartz, Mischa, author
McGraw-Hill, 1980
Buku Teks