000 00296nam a2200097Ia 4500
008 190716s9999 xx 000 0 und d
082 _aTP-377#
100 _aPrabhakaram, K.S.
245 0 _aStudy of the effectiveness of the concept attainment model in the teaching of mathematics
942 _cMF
_2DDC
999 _c24291
_d24291