Rais Yatim
DTP Enterprise Sdn. Bhd, 2007
Buku Teks
Rais Yatim
Mashi Publication, 2011
Buku Teks
Ranny, Austin
Prentince-Hall, 1987
Buku Teks
Cook, Timothy E.
The University of Chicago Press, 1997
Buku Teks
Atkins, Ruth
John Wiley & Sons, 1980
Buku Teks