M. Michael Garner
CBC, 1994
Buku Teks
Supperstone, Michael, author
Longman, 1994
Buku Teks
Goldstein, Paul, author
Little, Brown, 1989
Buku Teks
Garner, W. Michael
Clark Boardman callaghan, 1994
Buku Teks
Ding, Julian
Swett and Maxwell Asia, 1999
Buku Teks