Foundations of language : international journal of language and philosophy
Boston : D. Reidel Publishing
 Majalah, Jurnal, Buletin
Key Thinkers in linguistics and the Philosophy of language
Edinburgh, Edinburgh University Press, 2005
 Buku Referensi
Philosophy and History : a review of German language research contributions on philosophy, history and cultural developments
Tubingen : Laupp & Gobel
 Majalah, Jurnal, Buletin
Hayakawa, S.I.
Language in thought and action
Harcout, Brace & World, 1963
 Buku Teks
Communication and language : networks of thought and action
editorial board, Gerald Reid Barry ... [and others] ; illustrated and designed by Hans Erni
Macdonald, 1966
 Buku Teks