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The effect of age on positive and negative affect: A developmental perspective on happiness.
Mroczek, Daniel K., Kolarz, Christian M.Volume:
75
Year:
1998
Language:
english
Journal:
Journal of Personality and Social Psychology
DOI:
10.1037/0022-3514.75.5.1333
File:
PDF, 1.42 MB
english, 1998