1. Overcoming the distance: reflections on being a distance learning teacher;Beaverson;Prospect,1988
2. ESP and distance learning;Boyle;English for Specific Purposes,1994
3. Teacher education through distance learning: project design and implementation;Bradley;English Studies,1991
4. Towards a Theory of Instruction;Bruner,1966
5. A taxonomy of computer media in distance education;Chacon;Open Learning,1992