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《教育资源建设技术规范》信息模型CELTS-41.1. 教育部教育信息化技术标准委员会发布. .
[2]
Standard for leaning Object Metadata. IEEE 1484.12.1 .
[3]
Connecting Learning Objects to Instructional Design Theory:A Definition,a Metaphor,anda Taxonomy. David A W. http://www.reusability.org/read . 2002