Karson, Marvin J.
Iowa State University Press, 1982
Buku Teks
Hardle, Wolfgang Karl
Springer, 2012
eBooks
Raykov, Tenko
Routledge, Taylor & Francis Group, 2008
Buku Teks
Johnson, Richard A.
Pearson Education International, 2007
Buku Teks
Gnanadesikan, Ram, 1932-
John Wiley & Sons, 1977
Buku Teks