CAL for Europe : Computer-Assisted Learning for Europe : proceedings of a conference of the European Commission on the Development of Educational Software, Enschede, The Netherlands, 25-28 May 1986 /
Plomp, Tjeerd.
Deursen, Koos van.
Moonen, Jef.
European Commission on the Development of Educational Software.
Amsterdam Oxford North-Holland
c1987
Computer-assisted instruction