Proceedings of the IADIS international conference on Cognition and Exploratory Learning in Digital Age (CELDA 2005) , Porto, Portugal, December 14-16, 2005
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出版社: IADIS Press, c2005
ISBN-10: 9728924054 ISBN-13: 9789728924058
出版社: IADIS Press, c2005
ISBN-10: 9728924054 ISBN-13: 9789728924058