Beccaria, Gavin, author
Wiley, 2013
Buku Teks
Siviter, Bethann
Bailliere Tindall, 2013
Buku Referensi
Badke, William B., 1949-, author
iUniverse, 2014
Buku Teks
Madsen, David, 1929-, author
Jossey-Bass, 1992
Buku Teks
John Benjamins Publishing, 2005
Buku Teks