1.
Foundations of Educational Effectiveness
by Scheerens, J., Bosker, R.
ISBN: 9780080427690
List Price: $96.95
2.
Sechs Stucke Nach Stucken Zu Den Bearbeitungen Von Peter Hacks
by Bosker, Margo R.
ISBN: 9780820420592
List Price: $46.95
4.
Enhancing Educational Excellence, Equity, and Efficiency Evidence from Evaluations of System...
by Bosker, R. J., Creemers, Be...
ISBN: 9780792361381
List Price: $209.00