000 00411nam a2200121Ia 4500
100 _aPereira, Ruby
720 _a Dr.Rajkumari Gupta (guide)
942 _cTH
245 _aA study of the role of commutative property in facilitating mathematical skills in educable mentally retarded children
260 _aMumbai
_bS.N.D.T. Women's University
_c1994
300 _aix,110
999 _c128466
_d128466