Khan, Hazrat Inayat
Philosophy, Psychology, Mysticism
The Sufi International Headquarter's, 1956
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Theoria : a Swedish journal of philosophy and psychology
Copenhagen : C.W.K. Gleeup Lund
 Majalah, Jurnal, Buletin
Philosophy of psychology: debates on psychological explanation
editor, Cynthia Macdonald and Garaham Macdonald
Blackwell Publishers, Ltd., 1995
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Unity in psychology: possibility or pipedream?
edited by Robert J. Sternberg
American Psychological Association, 2005
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Royce, James E.
Man and his nature: a philosophical psychology
McGraw-Hill, 1961
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