Rottenberg, Annette T.
St. Martin, 1988
Buku Teks
Crusius, Timothy W., author
McGraw-Hill, 2002
Buku Teks
Trimmer, Joseph F., author
Houghton Miffiln, 1981
Buku Teks
Buscemi, Santi V., author
McGraw-Hill , 2002
Buku Teks
Muller, Gilbert H., author
McGraw-Hill, 1987
Buku Teks