Huddleston, Rodney, author
Cambridge University Press, 2006
Buku Teks
Huddleston, Rodney, author
Melbourne University Press, 1984
Buku Teks
Collins, Peter, author
Palgrave Macmillan, 2020
Buku Teks
Greenbaum, Sidney
Longman , 1991
Buku Teks
Greenbaum, Sidney
Harlow Longman 1991,
Buku Teks