TY  - GEN
AU  - Helmke, Andreas
TI  - Longitudinal analysis of the interaction of self-concept of aptitude and math achievement in elementary school children
KW  - Psicologia e Educacao
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/r4.htm
ER  -