کتاب های Jaap Scheerens
![Informal Learning of Active Citizenship at School: An International Comparative Study in Seven European Countries](http://cdn.ketabkoo.com/covers/4/400967-n.jpg)
Informal Learning of Active Citizenship at School: An International Comparative Study in Seven European Countries
Jaap Scheerens (auth.), 2009![Effectiveness of Time Investments in Education: Insights from a review and meta-analysis](http://cdn.ketabkoo.com/covers/4/460207-n.jpg)
Effectiveness of Time Investments in Education: Insights from a review and meta-analysis
Jaap Scheerens (auth.), 2014![Educational effectiveness and ineffectiveness : a critical review of the knowledge base](http://cdn.ketabkoo.com/covers/13/1380069-n.jpg)