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09243450902850176
09243450902850176
http://dx.doi.org/10.1080/09243450902850176
Multilevel design efficiency in educational effectiveness research
P356
Q57195337-EB9D19CC-3CD9-4EF9-8968-10E4E510A717
P356
09243450902850176
http://dx.doi.org/10.1080/09243450902850176