Further reading
- Holmberg , Borje . 1985 . Status and Trends of Distance Education , Lund : Lector Publishing .
- Lambert , M.P. 1988 . “ How to develop a correspondence course ” . In Developing Distance Education , Edited by: David , Sewart and John , S. Daniel . 47 – 49 . Oslo : ICDE .
- Lewis , Roger . 1984a . How to Tutor and Support Learners , Council for Educational Technology .
- Lewis , Roger . 1984b . Open Learning in Action , Council for Educational Technology .
- Lewis , Roger . 1985 . How to Develop and Manage an Open Learning Scheme , Council for Educational Technology .
- Lewis , Roger and Paine , Nigel . 1984 . How to Communicate with the Learner , Council for Educational Technology .
- Vester , Frederic . 1984 . Denken, Lernen, Vergessen , dtv Sachbuch .