Philosophy and History : a review of German language research contributions on philosophy, history and cultural developments
Tubingen : Laupp & Gobel
 Majalah, Jurnal, Buletin
Key Thinkers in linguistics and the Philosophy of language
Edinburgh, Edinburgh University Press, 2005
 Buku Referensi
Hayakawa, S.I., editor
Language in thought and action
London George & Unwin 1959
 Buku Teks
Language :journal of the linguistic society of America
Baltimore : The Linguistic Society of America
 Majalah, Jurnal, Buletin
Philosophy and phenomenological research : a quarterly journal
Buffalo : University of Buffalo
 Majalah, Jurnal, Buletin