Root, Franklin R., author
International Thompson Publishing, 1994
Buku Teks
Eiteman, David K., author
Pearson, 2010
Buku Teks
Eiteman, David K., author
Pearson, 2001
Buku Teks
Ward, Richard, author
Prentice-Hall, 1965
Buku Teks
Ward, Richard, author
Prentice-Hall, 1965
Buku Teks