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_aGarrison, D. Randy _949677 |
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| 245 | _aE Learning in the 21st Century: A Community of Inquiry Framework for Research and Practice | ||
| 250 | _a3rd ed | ||
| 260 |
_bRoutledge _aUSA _c2017 |
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| 300 | _a202p | ||
| 600 |
_aGeneral Book _949678 |
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_2ddc _cLB |
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