(2006)
(8 July 2002)
(2002), pp. 61-98.
(2000)
(2006)
(2006)
(1999), pp. 279-290.
(1999), pp. 397-424.
(2002), pp. 99-130.
Journal of Interactive Media in Education, No. 5. (2004)
(2002), pp. 25-58.
(1996)
(1982)
(2004)
(2005)
(2002)
(2000)
Journal of Interactive Learning Environments, Vol. 9, No. 3. (2003)
(1998)
Proceedings of the IADIS International Conference WWW/Internet, Vol. 1 (2003), pp. 219-226.
(8 August 2003)
Australasian Journal of Educational Technology, Vol. 21, No. 1. (2005), pp. 40-59.
(2005)
Interactive Educational Multimedia, Vol. 4 (2002), pp. 1-11.
(10 October 2004)
(1999)
(2005)
Proceedings of the IEEE International Conference on Advanced Learning Technologies (2004)
(2004)
CBT Solutions, No. March/April. (1998), pp. 1-11.
(2004), pp. 59-70.
Education at a Distance, Vol. 14, No. 11. (2000)
(May 2002)
(9 October 2002)
(2002)
The International Review of Research in Open and Distance Learning, Vol. 2, No. 1. (2001)
Association for Learning Technology Journal, Vol. 12, No. 1., pp. 21-35.
(1996)
Computers & Education, Vol. 46, No. 4. (2006), pp. 458-470.
International Journal on E-Learning, Vol. 5, No. 1. (2006), pp. 67-74.
Journal of Educational Technology & Society, Vol. 9, No. 1. (2006), pp. 229-249.
International Journal on E-Learning, Vol. 5, No. 1. (2006), pp. 11-17.
International Journal on E-Learning, Vol. 5, No. 1. (2006), pp. 161-166.
International Journal on E-Learning, Vol. 5, No. 1. (2006), pp. 89-94.
International Journal on E-Learning, Vol. 5, No. 1. (2006), pp. 25-33.
Data & Knowledge Engineering, Vol. 57, No. 2. (2006), pp. 111-121.
British Journal of Educational Technology, Vol. 37, No. 3. (2006), pp. 425-444.
British Journal of Educational Technology, Vol. 37, No. 3. (2006), pp. 461-477.