Azrul Azwar, author
Bina Rupa Aksara, 1988
Buku Teks
Ahlbom, Anders
Epideology Resources, 1984
Buku Teks
Timmreck, Thomas C, author
EGC, 2005
Buku Teks
Duncan, David F.
Macmillan, 1988
Buku Teks
Lilienfeld, Abraham M., author
Oxford University Press, 1980
Buku Teks