Cook, V. J.
Blackwell, 1997
Buku Teks
Healy, Phyllis M., author
The Institute of Nationale Language and The Summer Institute Linguistics, 1960
Buku Teks
Fanselow, Gisbert
Tubingen Francke 1987
Buku Teks
Botha, Rudolf P.
The Hague Mouton 1968
Buku Teks
Newmeyer, Frederick J.
Routledge, 1996
Buku Teks