Coletta, Vincent, author
Mosby, 1995
Buku Teks
Blatt, Frank J., author
McGraw-Hill, 1992
Buku Teks
Ewen, Dale, author
Pearson Prentice-Hall, 2009
Buku Teks
Pollack, Herman W., author
Prentice-Hall, 1964
Buku Teks
Kenworthy, Ray W., author
F.A. Davis, 1961
Buku Teks