Cassirer, Ernst
B. Cassirer, 1923-29
Buku Teks
edited by Hugh J. Silverman
Routledge, 1993
Buku Teks
Allwood, Jens
Cambridge University Press, 1995
Buku Teks SO
Pike, Kenneth Lee, 1912-2000
Summer Institute of Linguistics , 1993
Buku Teks
Grayling, A.C.
Blackwell, 1997
Buku Teks