Newton, Charles Thomas
Cambridge University Press, 2011
eBooks
Hendricks, William O.
Mouton, 1973
Buku Teks
Smith, Bernard
Oxford University Press, 1976
Buku Teks
Armstrong, Kate
Michigan State University Press, 2001
Buku Teks
Mukarovsky, Jan
Yale University Press, 1977
Buku Teks