The American journal of distance education
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| 上一標題: | Media and adult learning |
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| Corporate Authors: | , |
| 格式: | 電子 雜誌 |
| 語言: | English |
| 出版: |
University Park, PA :
Office for Distance Education of the College of Education at the Pennsylvania State University,
c1987-
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| 主題: | |
| 在線閱讀: | Available in Education Source. |
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