3Mary Peat. Towards First Year Biology Online : a Virtual Learning Environment[J]. Educational Technology&Society 3(3),2000.
4Demetrios G. Sampson. Collaborative Virtual Environments: Digital Places and Spaces for Interaction[J]. Educational Technology & Society 5(4) ,2002.
5Philip L. Isenhour etc. The Virtual School:An integrated collaborative environment for the classroom[J]. Educational Technology &. Society 3(2) ,2000.
6Mario Barajas etc. Implementing Virtual Learning Environments: Looking for Holistic Approach[J]. Educational Technology & Society 3(3) ,2000.
7RACHEL ELLAWAY, DAVID DEWHURST & ALLAN CUMMING, Managing and supporting medical education with a virtual learning environment: the Edinburgh Electronic Medical Curriculum[J]. Medical Teacher,Vol. 25,No. 4,July 2003,pp372-380.
