O`Connor, Patrick D.T.
John Wiley & Sons, 1995
Buku Teks SO
by M.J. Crowder ... [et al.]
Chapman & Hall, 1991
Buku Teks SO
Ranganathan, R.
Tata McGraw-Hill, 1990
Buku Teks SO
Hollnagel, Erik
Academic Press, 1993
Buku Teks SO
Huston, Ronald L.
CRC Press, 2009
Buku Teks