No Description Available. Title: Learner-Centered Theory and Practice in Distance Education Author: Duffy, Thomas M. (EDT)/ Kirkley, Jamie R. (EDT) Publisher: Lawrence Erlbaum Assoc Inc Publication Date: 2003/11/01 Number of Pages: 453 Binding Type: PAPERBACK Additional Details \N BRAND : Duffy, Thomas M. (EDT)/ Kirkley, Jamie R. (EDT)
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