1. Collaborative concept learning; collaborative learning tasks, student interaction, and the learning of physics concepts;Boxtel van,2000
2. Participation and critical thinking in online university distance education;Bullen;Journal of Distance Education,1998
3. Content analysis schemes to analyze transcripts of online asynchronous discussion groups: a review;De Wever;Computers and Education,2006
4. Patterns of interaction in a computer conference transcript;Fahy;International Review of Research in Open and Distance Learning,2001
5. The development and testing of a tool for analysis of computer mediated conferencing transcripts;Fahy;Alberta Journal of Educational Research,2000