na INLIS000000000000797 20220516130411.0 220516| ||| | ind a 0010-052200000000487 Sistem Pengolahan Informasi William S. Davis "DAVIS, William S" Ed. 2 Jakarta Erlangga 1986 "xii, 531 p. : ills. ; 21 cm" 659.2 INFORMATION. 1 1934/2002