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22
Được phát hành 1985
Full text available from ABI/INFORM Global: 01/01/1997 to 1 year agoFull text available from Environmental Science Database: 01/01/1997 to 1 year ago
Full text available from Healthcare Administration Database: 01/01/1997 to 1 year ago
Full text available from Military Database: 01/01/1997 to 1 year ago
Full text available from Political Science Database: 01/01/1997 to 1 year ago
Full text available from Public Health Database: 01/01/1997 to 1 year ago
Full text available from Research Library: 01/01/1997 to 1 year ago
Full text available from Social Science Database: 01/01/1997 to 1 year ago
Full text available from Sociology Database: 01/01/1997 to 1 year ago
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23
24
Full text available from Biological Science Database: 01/01/2015 to 01/31/2016
Full text available from Computer Science Database: 01/01/2015 to 01/31/2016
Full text available from Health & Medical Collection: 01/01/2015 to 01/31/2016
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25
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30
Được phát hành 2014
Full text available from Advanced Technologies & Aerospace Database: 01/01/2014 to 12/31/2018Full text available from Computer Science Database: 01/01/2014 to 12/31/2018
Full text available from Advanced Technologies & Aerospace Database: 01/01/2020 to present
Full text available from Computer Science Database: 01/01/2020 to present
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31
Full text available from Computer Science Database: 11/01/1996 to 12/31/2002
Full text available from Education Database: 11/01/1996 to 12/31/2002
Full text available from Library Science Database: 11/01/1996 to 12/31/2002
Full text available from Research Library: 11/01/1996 to 12/31/2002
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32
33
Full text available from Computer Science Database: 01/01/2008 to 07/31/2015
Full text available from Library Science Database: 01/01/2008 to 07/31/2015
Full text available from Research Library: 01/01/2008 to 07/31/2015
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34
35
Được phát hành 1989
Full text available from ABI/INFORM Global: 01/01/2003 to 2011Full text available from Advanced Technologies & Aerospace Database: 01/01/2003 to 2011
Full text available from Library Science Database: 01/01/2003 to 2011
Full text available from UK & Ireland Database: 01/01/2003 to 2011
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36
37
Full text available from Computer Science Database: 06/01/2011 to 09/30/2018
Full text available from Library Science Database: 06/01/2011 to 09/30/2018
Full text available from Research Library: 06/01/2011 to 09/30/2018
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39