Radopi, 1980
Buku Teks
Saussure, Ferdinand de, author
Peter Owen, 1960
Buku Teks
Departement of Language and Linguistics University of Essex , 1983
Buku Teks
Aitchison, Jean, 1938-, author
Cambridge University Press, 1995
Buku Teks
Edinburgh University Press, 1966
Buku Teks