Fabb, Nigel
Cambridge University Press, 2009
eBooks
Langacker, Ronald W.
Harcourt, Brace & World, 1968
Buku Teks
Lyons, John
Cambridge University Press, 1991
Buku Teks
Moulton, William G.
Modern Language Association of America, 1966
Buku Teks
by Bernard Bloch, George L. Trager
Baltimore, 1942
Buku Referensi