Barry Lee, editor
Continuum International Pub. Group, 2011
Buku Teks SO
Katz, Jerrold J.
George Allen and Unwin, 1972
Buku Teks SO
Edinburgh, Edinburgh University Press, 2005
Buku Referensi
Katz, Jerrold J.
Harper & Row, 1966
Buku Teks SO
Vendler, Zeno
Cornell University Press, [1967]
Buku Teks SO