Pride, William M., author
South Western Cengage Learning, 2012
Buku Teks
Hughes, Robert James, 1946-, author
South-Western Cengage Learning, 2013
Buku Teks
Shubin, John A., author
Barnes & Noble Books, 1957
Buku Teks
Sadler, Philip, author
Koopa Page , 2001
Buku Teks
Durand, Robert Y., author
Prentice-Hall, 1958
Buku Teks