000 00734nam a2200241 a 4500
005 20210219153306.0
008 991125n 000 0 u
035 _aUPN01000089051
100 _aRand, Per
222 _aSCANDINAVIAN JOURNAL OF EDUCATIONAL RESEARCH
245 _aNegative motivation is half the story : achievement motivation combiness positive and negative motivation
300 _a13-30
362 _a35, No. 1, 1991
505 _aJulio 1991
653 0 _aESTUDIANTES DE LA ESCUELA ELEMENTAL
653 0 _aMOTIVACION DEL ESTUDIANTE
653 0 _aPRUEBAS DE ANSIEDAD
653 0 _aRENDIMIENTO ACADEMICO
700 _aLens, Willy
700 _aDecock, Ben
904 _aAC
_b026862
905 _aArticulo
999 _c73266
_d73266