Klawonn, Frank, author
Springer-Verlag, 2012
eBooks
Buck, John R., author
Prentice-Hall, 2002
Buku Teks
Keller, Arthur M., author
McGraw-Hill, 1982
Buku Teks
Angell, Ian O., author
Macmillan, 1991
Buku Teks
Mick, Colin, author
Dow Joner-Irwin, 1984
Buku Teks