Frost, David text Jakarta Elex Media Komputindo 1991 ind ix, 141 halaman ; 21 cm. David Frost computer security 005.8 005.8 FRO p 0--273-03255-0 240612 20240612145207.0 INLIS000000000000024 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)