Dukore, Bernard F. (Bernard Frank), 1931-, author
Macmillan, 1984
Buku Teks
Cohn, Ruby
Macmillan, 1991
Buku Teks
Etherton, Michael
Macmillan, 1989
Buku Teks
O`neill, Eugene, author
Penguin Books, 1970
Buku Teks
Berlin, Normand
Macmillan Education, 1988
Buku Teks