8
Έκδοση 2015
Full text available from Psychology Database: 04/01/2015 to 03/31/2017
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Full text available from Sociology Database: 04/01/2015 to 03/31/2017
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
9
Έκδοση 1972
Full text available from Education Database: 02/01/1997 to 10/31/2005
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Ηλεκτρονική πηγή Επιστημονικό περιοδικό
10
Full text available from Consumer Health Database: 01/01/2004 to 07/31/2009
Full text available from Psychology Database: 01/01/2004 to 07/31/2009
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
11
Full text available from Religion Database: 01/01/2010 to 09/30/2011
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Ηλεκτρονική πηγή Επιστημονικό περιοδικό