Keuth, Herbert, 1940-
The philosophy of Karl Popper / Herbert Keuth
Cambridge University Press, 2005
 Buku Teks
Karl Marx: The poverty of philosophy
Foreign Languages Publishing House, 1892
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Flew, Antony
An introduction to Western philosophy: ideas and argument from Plato to Popper / Antony Flew
Thames and Hudson , 1989
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Corvi, Roberta
An introduction to the thought of karl popper/Roberta Corvi
Routledge, 1997
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Studies in Philosophy And The History of philosophy
edited by John K. Ryan
The Catholic University of America Press, 1963
 Buku Teks