Dale, Nell, author
D.C. Heath And Co., 1987
Buku Teks
Dale, Nell, author
D.C. Heath And Co., 1987
Buku Teks
Lewis, T.G. (Theodore Gyle), author
Reston Publishing, 1981
Buku Teks
Moore, Lawrie, author
Ellis Horwood Limited, 1980
Buku Teks
edited by D. W. Barron
John Wiley & Sons, 1981
Buku Teks