Sistem Pengolahan Informasi William S. Davis "DAVIS, William S" text Jakarta Erlangga 1986 ind "xii, 531 p. : ills. ; 21 cm" INFORMATION 659.2 220516 20220516130411.0 INLIS000000000000797 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)