2The Commonwealth of Learning (2004). Planning and Implementing Open and Distance Learning Systems: A Handbook for Decision Makers[DB/OL]. http://dspace.col.org/bitstream/123456789/164/1/odlplanningHB.pdf.
5Ip Albert. Morrison, Iain Currie, Mike. What is a Learning Object, TechnicaUy?[A].WebNet 2001: World Conference on the WWW and Interact Proceedings[C].Orlando, FL, October.2001.
6Grainne Conole and Karen Fill. A Learning Design Toolkit to Create Pedagogically Effective Learning Activities [J].Joumal of Interactive Media in Education (Portable Learning. Special Issue, eds. Colin Tattersall, Rob Koper), 2005, (8).