Healy, Phyllis M., author
The Institute of Nationale Language and The Summer Institute Linguistics, 1960
Buku Teks
Cook, V. J.
Blackwell, 1997
Buku Teks
Roma Bulzoni 1977
Buku Teks
Calon, L.F.
Batavia: Albrecht, 1895
Buku Teks
Starosta, Stanley
Pinter Publisher, 1988
Buku Teks