Gear, Charles William, 1935-
1978
Buku Teks SO
edited by Raymond Chiong, Thomas Weise, and Zbigniew Michalewicz
Springer, 2012
eBooks
Waite, W.M.
Prentice-Hall, 1973
Buku Teks SO
IOS, 1989
Buku Teks SO
Barnard, David T.
Reston Publishing Company, Inc., 1982
Buku Teks SO