Goodman, David J.
Addison-Wesley , 1997
Buku Teks SO
Maier, Ronald
Springer, 2007
Buku Teks SO
edited by Peter Smyth
Institution of Engineering and Technology, 2008
eBooks
Sample, Seichi
Prenticel Hall, 1997
Buku Teks SO
Glisic, Savo G.
John Wiley & Sons, 2011
Buku Teks SO