Cost factors in planning educational technology systems.
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
Paris
UNESCO
1977.
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| 丛编: | Fundamentals of educational planning, 24
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| 主题: |
| 主要作者: | |
|---|---|
| 格式: | 图书 |
| 语言: | English |
| 出版: |
Paris
UNESCO
1977.
|
| 丛编: | Fundamentals of educational planning, 24
|
| 主题: |