Karson, Marvin J., author
Iowa State University Press, 1982
Buku Teks
Kachigan, Sam Kash, author
Radius Press, 1991
Buku Teks
Hardle, Wolfgang Karl, author
Springer, 2012
eBooks
Johnson, Richard A., author
Pearson Education International, 2007
Buku Teks
Raykov, Tenko, author
Routledge, Taylor & Francis Group, 2008
Buku Teks