na INLIS000000000001517 20140109112821 180129||||||||| | ||| |||| || | - 0010-011400000001517 id 001.644 2 001.644 2 Hadi, Djarot Mengenal Virus Komputer Cet.1 Jakarta PT. Elex Media Komputindo 1991 viii, 84 hal : 21 cm Bibliografi hal 83