1. Issues in interactive communication in distance education;Abrahamson;College Student Journal,1998
2. Kirkpatrick's levels of training criteria: Thirty years later;Alliger,1994
3. A meta-analysis of the relations among training criteria;Alliger;Personnel Psychology,1997
4. An integrated model of multimedia learning and motivation;Astleitner;Journal of Educational Multimedia and Hypermedia,2004
5. Working memory: Theory and practice;Baddeley,1986