Yazar
jac n zaal
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Cilt sonuçları
Advances in educational and psychological testing
Ronald K. Hambleton, Jac N. Zaal · Springer
468 sayfa · 1991
Psychological tests / Educational tests and measurements
Sociaal emotioneel gedrag in de klas
Jac N. Zaal · Wolters-Noordhoff
264 sayfa · 1979
Children / Conduct of life / Educational tests and measurements / Methodology / Sociometry