Northrup, P. T. (2007). Learning objects for instruction: Design and evaluation. Information Science pub.
Čikaški stil citiranjaNorthrup, Pamela T. Learning Objects for Instruction: Design and Evaluation. New York: Information Science pub, 2007.
MLA način citiranjaNorthrup, Pamela T. Learning Objects for Instruction: Design and Evaluation. Information Science pub, 2007.
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