The effects of distance learning : a summary of literature /
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| Autore principale: | |
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| Ente Autore: | |
| Altri autori: | , |
| Natura: | Libro |
| Lingua: | English |
| Pubblicazione: |
University Park, PA :
American Center for the Study of Distance Education, College of Education, Pennsylvania State University,
c1990.
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| Serie: | ACSDE research monograph ;
no. 2. |
| Soggetti: |