Tu, Chih-Hsiung <br/><br/>Online collaborative learning communities :  twenty-one designs to building an online collaborative learning community / Chih-Hsiung Tu.   -- London:  Libraries Unlimited.,  2004.  <br/>xiii, 140 p.;  24 cm. <br/><br/> Includes bibliographical references and index.  <br/><br/><label>ISBN: </label>9781591581550 <br/><br/><label>Subjects--Topical Terms: </label><br/>Computer-assisted instruction.  <br/>Instructional systems -- Design.<br/>Group work in education. <br/>Computer conferencing in education.<br/><br/><label>Dewey Class. No.: </label>Res 371.334 T790 2004