Pergamon Press, 1982
Buku Teks
Brauer, Fred, author
Springer Science, 2012
eBooks
Jorgensen, Bent, author
Chapman and Hall, 1993
Buku Teks
Sheps, Mindel C., author
Chicago Press, 1973
Buku Teks
edited by P. Smith
Blackwell Scientific Publications, 1994
Buku Teks