TY  - BOOK
AU  - Tu, Chih-Hsiung
TI  -  Online collaborative learning communities: twenty-one designs to building an online collaborative learning community 
SN  - 9781591581550
U1  - Res 371.334 T790 2004 
PY  - 2004///.
CY  - London
PB  - Libraries Unlimited.
KW  - Computer-assisted instruction.
KW  - Instructional systems -- Design
KW  - Group work in education.
KW  - Computer conferencing in education
N1  - Includes bibliographical references and index.
ER  -