000 00317nam a2200145Ia 4500
020 _a0000000000
082 _b1167
_a510
100 _a"JABEEN SURAIYA"
245 0 _aUNDERSTANDING MATHEMATICS
260 _c2000
300 _a121
944 _cTR
999 _c149340
_d149340