000 00308nam a2200133Ia 4500
000 0003862
008 231103s9999 xx 000 0 und d
020 _a9789673717408
041 _aBM
100 0 _atim EMS
245 0 0 _amengatasi data hilang & serangan virus
260 _bSynergy media
300 _c21 cm
999 _c11589
_d11589