Lustig R. Learn How to Increase Your Chances of Winning the Lottery. Bloomington, IN: Authorhouse, 2010.

College Board. Student Descriptive Questionnaire. Princeton, NJ: Educational Testing Service, 1976–1977.

Beck A.T. Depression: Clinical, Experimental, and Theoretical Aspects. N. Y.: Harper and Row, 1967.

Alloy L.B., Abramson L.Y. Judgment of Contingency in Depressed and Nondepressed Students: Sadder but Wiser? // Journal of Experimental Psychology: General. 1979. Vol. 108. Р. 441–485.