Fifty key thinkers on the environment
Joy A. Palmer
Routledge , 2001
 Buku Teks
Philosophy of Language : key thinkers
Barry Lee, editor
Continuum International Pub. Group, 2011
 Buku Teks SO
Key thinkers in linguistics and the philosophy of language
edited by Siobhan Chapman
Oxford University Press, 2005
 Buku Teks
Key Thinkers in linguistics and the Philosophy of language
Edinburgh, Edinburgh University Press, 2005
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Lechte, John
Fifty key contemporary thinkers : from structuralism to postmodernity
Roudledge, 1994
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