See Allo

The encyclopedia of philosophy

editor, Donald M. Borchert

Macmilan, 1996

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Encyclopedia of psychology

edited by Raymond J. Corsini

New York : John Wiley & Sons, 1990,

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Encyclopedia of psychology

edited by Raymond J. Corsini

New York : John Wiley & sons, 1994,

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Encyclopedia of psychology

edited by Raymond J. Corsin

New York : John Wiley & Sons, 1994,

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The Coptic encyclopedia

editor, Aziz S. Atiya

Macmillan Company , 1991

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