text Yogyakarta Andi 2005 ed. 1st. I ix, 165 hlm. 21 cm COMPUTER SECURITY 005.8 005.8 Utd a 9797630005 INLIS000000000000594 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)