TY - GEN AU - Sletta, Olav AU - Sobstad, Frode AU - Valas, Harald TI - Humour, peer acceptance and perceived social competence in preschool and school-aged children KW - Psicologia e Educacao KW - 3500 - Psicologia Educacional UR - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/r4.htm ER -