Athens, Lonnie H
Routledge, 1989
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Buku Teks
Toch, Hans, author
American Psychological Association, 1994
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edited by David Bloomfield, Teresa Barnes, and Luc Huyse ; contributors, David Bloomfield [and others]
International IDEA, 2003
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Marquez, Gabriel Garcia, author
Penguin Books, 1982
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