Sonja Dümpelmann, John Beardsley.
Routledge, 2015
Buku Teks
Zeisel, John
W.W. Norton & Company, 2006
Buku Teks
Eckbo, Garrett, author
McGraw-Hill, 1964
Buku Teks
Wojtowicz, Robert, author
Cambridge University Press, 1998
Buku Teks
Marsh, William M., author
John Wiley & Sons, 2005
Buku Teks