Gideon Sapir, author
Cambridge University Press, 2018
eBooks
Taylor, Victor E., author
Routledge, 2000
Buku Teks
Brown, L. Carl, author
Columbia University Press, 2000
Buku Teks
Herrmann, Heinz, author
Harper & Row, 1989
Buku Teks
Verkaaik, Oskar
VU University Press, 1994
Buku Teks