Barry Lee, editor
Continuum International Pub. Group, 2011
Buku Teks SO
Edinburgh, Edinburgh University Press, 2005
Buku Referensi
edited by Bob Hale and Crispin Wright
Blackwell, 1997
Buku Teks
Vendler, Zeno
Cornell University Press, [1967]
Buku Teks
Oxford University Press , 1996
Buku Teks