000 00267nam a2200109Ia 4500
008 230210s9999 xx 000 0 und d
100 _aGUPTA JAYENDRA SHEKHAR
_919163
245 0 _aMATHEMATICS TEACHING
260 _bSHRI KAVITA PUB.
300 _a248
942 _cBK
999 _c118799
_d118799