Muller, Werner A., author
Springer, 1997
Buku Teks
The nuffield foundation, 1966/1967
Buku Teks
Hopper, Arthur F., author
Oxford University Press, 1985
Buku Teks
Freifelder, David, author
Jones and Bartlett, 1986
Buku Teks
Weaver, Robert F., author
McGraw-Hill, 1999
Buku Teks