Schiffman, Harold F.
Routledge, 1996
Buku Teks
Chaudenson, Robert
Routledge, 2001
Buku Teks
Raud, Rein
UK Malden, MA Polity Press, 2016
Buku Teks
edited by Alessandro Duranti
Blaxkwell , 2004
Buku Teks
Sapir, Edward
University of California Press, 1949
Buku Teks