Ibnu Syamsi, author
Bina Aksara, 1989
Buku Teks
Radford, K.J., author
Prushin-Hall, 1974
Buku Teks
edited by Anthony G. McGrew
Manchester University Press, 1985
Buku Teks
Eden, Colin, author
Macmillan, 1975
Buku Teks
Cambridge University Press, 2004
Buku Teks