Halverson, william H
A Concise introduction to philosophy
Random House, 1969
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The routledge companion to philosophy of science
Stathis Psillos, Martin Curd, editor
Routledge, 2008
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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 SO
Patrick, George Thomas White
Introduction to philosophy
George Allen and Unwin, 1925
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Russell, Bertrand, 1872-1970
The problems of philosophy
Oxford University Press, 1912
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