Focus on the Wonder Years Autor Jaana Juvonen et al. 16 mar 2004 Paperback Preț: 196.38 lei 6-8 săpt.
Social Motivation: Understanding Children's School Adjustment Cambridge Studies in Social and Emotional Development Editat de Jaana Juvonen et al. 12 sep 1996 Paperback Preț: 309.06 lei 6-8 săpt.