00318     2200121   4500020002200000084001100022090001700033100002500050245005700075260002400132300002300156850001700179  a978-623-96821-0-1  a363.28  a363.28 Dja o  aMarthen Luther Djari10aOffline to online: 75 tahun siber dan sandi mengabdi  aJakartabBSSNc2021  a256 hlm.; 17x24 cm  aLemhannas RI