000 00353nam a2200145Ia 4500
020 _a0000000000
082 _bT763
_a001.642
100 _a"M. Sajjad Heder"
245 0 _aComputer science Grade 12
260 _bNational book foundation Islamabad
_c0
300 _a0
944 _cTB
999 _c517845
_d517845