TY  - GEN
AU  - Lens, Willy
TI  - How to combine intrinsic task-motivation with the motivational effects of the instrumentality of present tasks for ...
KW  - Psicologia Educacional
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm
ER  -