Phang Boon Leong, Andrew
Butterworths Asia , 1994
Buku Teks
Ramjohn, Mohamed
Cavendisch Publishing, 1998
Buku Teks
Youngs, Raymond, author
Cavendish, 1994
Buku Teks
Plavers, Anthony
Butterworth Asia, 1996
Buku Teks
Woon, Walter C. M., author
Prentice-Hall, 2000
Buku Teks