edited by Nitin Indurkhya; Fred J. Damerau
CRC Press, 2010
Buku Teks SO
edited by Alexander Clark, Chris Fox and Shalom Lappin
Wiley-Blackwell, 2013
Buku Teks SO
Krulee, Gilbert K.
Prentice-Hall, 1991
Buku Teks SO
Lyons, John
Cambridge University Press, 1991
eBooks
Allen, James
Benjamin Cummings, 1987
Buku Teks SO