Murray, Ruth Beckmann, author
Prentice-Hall, 1985
Buku Teks
Murray, Ruth Beckmann, author
Prentice-Hall, 1979
Buku Teks
Smitherman, Colleen, author
F.A. Davis company, 1981
Buku Teks
Naidoo, Jennie, author
Baillere Tindall , 2000
Buku Teks
editor, Spyros Doxiadis ; editorial committee, Roger Blaney [and others]
John Wiley & Sons, 1987
Buku Teks