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41
Được phát hành 1980
Full text available from Advanced Technologies & Aerospace Database: 01/01/2005 to presentFull text available from Career & Technical Education Database: 01/01/2005 to present
Full text available from Computer Science Database: 01/01/2005 to present
Full text available from Science Database: 01/01/2005 to present
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42
Được phát hành 2005
Full text available from ABI/INFORM Trade & Industry: 03/01/2005 to 09/30/2005Full text available from Advanced Technologies & Aerospace Database: 03/01/2005 to 09/30/2005
Full text available from Career & Technical Education Database: 03/01/2005 to 09/30/2005
Full text available from Computer Science Database: 03/01/2005 to 09/30/2005
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43
44
Full text available from Advanced Technologies & Aerospace Database: 01/01/1998 to 03/31/1999
Full text available from Career & Technical Education Database: 01/01/1998 to 03/31/1999
Full text available from Computer Science Database: 01/01/1998 to 03/31/1999
Full text available from ABI/INFORM Trade & Industry: 03/01/2005 to 07/31/2010
Full text available from Advanced Technologies & Aerospace Database: 03/01/2005 to 07/31/2010
Full text available from Career & Technical Education Database: 03/01/2005 to 07/31/2010
Full text available from Computer Science Database: 03/01/2005 to 07/31/2010
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45
Full text available from Advanced Technologies & Aerospace Database: 01/01/1996 to 12/31/2018
Full text available from Computer Science Database: 01/01/1996 to 12/31/2018
Full text available from Engineering Database: 01/01/1996 to 12/31/2018
Full text available from Science Database: 01/01/1996 to 12/31/2018
Full text available from ABI/INFORM Global: 01/01/2020 to 1 year ago
Full text available from Advanced Technologies & Aerospace Database: 01/01/2020 to 1 year ago
Full text available from Computer Science Database: 01/01/2020 to 1 year ago
Full text available from Engineering Database: 01/01/2020 to 1 year ago
Full text available from Science Database: 01/01/2020 to 1 year ago
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46
47
Được phát hành 2001
Full text available from Computer Science Database: 01/01/1998 to 04/30/2005Full text available from Advanced Technologies & Aerospace Database: 07/01/2001 to 04/30/2005
Full text available from Career & Technical Education Database: 07/01/2001 to 04/30/2005
Full text available from Research Library: 07/01/2001 to 04/30/2005
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48
Được phát hành 1986
Full text available from ABI/INFORM Trade & Industry: 12/01/2000 to 11/30/2003Full text available from Advanced Technologies & Aerospace Database: 12/01/2000 to 11/30/2003
Full text available from Career & Technical Education Database: 12/01/2000 to 11/30/2003
Full text available from Computer Science Database: 12/01/2000 to 11/30/2003
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49
50
Được phát hành 1985
Full text available from Research Library: 05/01/1998 to 06/30/2002
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51
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