na INLIS000000000066624 20211124110910 0010-1121000561 ta 211124 g 0 ind 978-623-00-0440-7 005.8 005.8 DED k Dedik Kurniawan Kitab Hcaker / Dedik Kurniawan cet.3 Jakarta. : PT Elex Media Komputindo, 2021 xii, 266 hlm. : ilust. ; 21 cm. KEAMANAN DATA