edited by Gianfranco Pacchioni, Paul S. Bagus and Fulvio Parmigiani
Plenum Press, 1992
Buku Teks
Whitehouse, David J.
Philadelphia : IOP, 2003,
Buku Referensi
Croxton, Clive A., author
John Wiley & Sons, 1980
Buku Teks
Engel, Thomas, author
Prentice-Hall, 2010
Buku Teks
Kulshrestha, S.K., author
UI-Press, 1989
Buku Teks