The economics of new educational media : vol. 3. Cost and effectiveness overview and synthesis.
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| Main Author: | |
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| Other Authors: | , , , |
| Format: | Book |
| Language: | English |
| Series: | (Educational methods and techniques ;
no. 1) |
| Subjects: | |
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| Physical Description: | 150 p. |
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| ISSN: | 923101997X |