Potter, Pitman B.
University Of Washington Press, 1992
Buku Teks
Jhong, Jianhu
Sweet and Maxwell Asia, 1998
Buku Teks
Higgins, P. F. P.
Butterworth, 1974
Buku Teks
Richards, Paul H.
Pitman, 1999
Buku Teks
Tang See Chim
Books International, 1987
Buku Teks