edited by Sohn Ho-min
University of Hawaii, 2006
Buku Teks
Chaudenson, Robert
Routledge, 2001
Buku Teks
Schiffman, Harold F.
Routledge, 1996
Buku Teks
edited by Alessandro Duranti
Blaxkwell , 2004
Buku Teks
Lambert, Wallace E.
Stanford University press, 1972
Buku Teks