D. H. Schunk (1991), ‘Self-Efficacy and Academic Motivation’, Educational Psychologist, volume 26, issue 3–4, pp. 207–231.
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История о «Ливерпуле» взята из статьи: Ian Herbert, ‘Dr Steve Peters: the psychiatrist charged with ridding Anfield of the fear factor’, Independent, 28 March 2013.
