000 00273nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _bMAN
100 _aMangal, S.K
245 0 _aLearning and Teaching
260 _bshipra Publication
_c2017
300 _a357
942 _cBD
999 _c4048
_d4048