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Submitted on: 20 January 1998.
Revised on: 16 February 1998.
Accepted on: 18 March 1998.
___________________Internet and Higher Education---ELSEVIER SCIENCE INC
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Submitted on: 11 March 2004.
Revised on: 19 June 2004.
Accepted on: 14 August 2004.
___________________Internet and Higher Education---ELSEVIER SCIENCE INC
Submitted on: 04 July 1998.
Revised on: 25 September 1998.
Accepted on: 10 November 1998.
___________________Internet and Higher Education---ELSEVIER SCIENCE INC
Submitted on: 09 February 2003.
Revised on: 27 March 2003.
Accepted on: 19 May 2003.
___________________Internet and Higher Education---ELSEVIER SCIENCE INC