edited by Joseph H. Greenberg
MIT Press, 1966
Buku Teks
Chomsky, Noam, author
Cambridge University Press, 2007
Buku Teks
Pinker, Steven, author
Penguin books, 1994
Buku Teks
Vendryes, J. (Joseph), 1875-1960, author
Routledge, 1996
Buku Teks
Diamond, A. S. (Arthur Sigismund)
Methuen , 1959
Buku Teks