New York : Cambridge University Press
Majalah, Jurnal, Buletin
Berlin : Mouton Publishers
Majalah, Jurnal, Buletin
Bloomfield, Leonard, author
Amsterdam John Benjamins Publishing 1983
Buku Teks
New York : The American Council on the Teaching of Foreign Language Inc
Majalah, Jurnal, Buletin
Wisconsin : University of Wirconsin Press
Majalah, Jurnal, Buletin