Johnson, Porter Wear., author
World Scientific, 2010
Buku Teks
Kotkin, G.L.
Pergamon Press, 1971
Buku Teks
Rana, Narayan Chandra
Tata McGraw-Hill , 1994
Buku Teks
Matzner, Richard A., author
Prentice-Hall, 1991
Buku Teks
Goldstein, Herbert, author
Addison-Wesley Publishing Company, INC, 1950
Buku Teks