Coggle, Paul
Teach Youeself Books, 1991
Buku Teks
Wilkes, Angela
Chicago: A Division of NTC Pub., 1987,
Buku Referensi
Burke, Claire
New York Routledge, 1999
Buku Teks
Coggle, Paul
Kesaint Blanc, 2010
Multimedia
Coggle, Paul
Kesaint Blanc, 2010
Multimedia