References
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- Keegan , D.J. 1980b . On Defining Distance Education’ . Distance Education , 1 ( 1 ) : 19 – 45 .
- Perry , W. 1976 . The Open University , Milton Keynes : Open University .
- Peters , O. 1973 . Die Didaktische Struktur des Femunterrichts: Untersuchungen zur eriner Industrialisierten Form des Lehrens und Lernens , Weinheim : Beltx . translated byD. Keegan in On the Nature of Distance Education
- Powell , R. 1993 . “ ‘Profile of Visiting Students’ ” . In AU Trends , Athabasca : Center for Distance Education, Athabasca University . Number 13
- Snowdon , B.L. and Daniel , H.S. 1980 . ‘The Economics and Management of Small Post‐Secondary Distance Education Systems’ . Distance Education ,