000 00620nam a2200205 a 4500
005 20210219153159.0
008 991125n 000 0 eng u
035 _aUPN01000082584
100 1 _aMarsh, Herbert W.
222 _aJOURNAL OF EDUCATIONAL PSYCHOLOGY
245 _aInfluences of internal and external frames of reference on the formation of math and englih self-concepts
300 _a107-116
362 0 _a1990 Vol. 82, no. 1, mar.
653 0 _aASESORIA EDUCATIVA
653 0 _aINGLES (LENGUA)
653 0 _aMATEMATICA
653 0 _aPSICOLOGIA SOCIAL
904 _aAC
_b020395
905 _aArticulo
999 _c70393
_d70393