The economics of new educational media : vol.3 : cost and effecti veness overview and synthesis /
The economics of new educational media : vol.3 : cost and effecti veness overview and synthesis /
Jean-Claude Eicher ...[et al]
- Paris : The Unesco Press, 1982
- 150 p. : ill. ; 24 cm.
Includes bibliographical references (p.143 - 150)
Teaching -- Aids and devices
Includes bibliographical references (p.143 - 150)
Teaching -- Aids and devices