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n roeder
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Cilt sonuçları
Schulen im Leistungsvergleich
T. Neville Postlethwaite, Hans N. Weiler, Peter Martin Roeder, Jens Hoffmann · Klett-Cotta
155 sayfa · 1980
Academic achievement / Evaluation / International Association for the Evaluation of Educational Achievement / Comparative education / Educational tests and measurements