Garside, R.G., author
Clarendon Press, 1980
Buku Teks
edited by Greg Astfalk
Society for Industrial and Applied Mathematics, 1996
eBooks
Gries, David, author
John Wiley & Sons, 1971
Buku Teks
Murray, William D., author
Prentice-Hall, 1990
Buku Teks
Yu-Tung Liu, editor
Birkhauser Publisher, 2002
Buku Teks