Mason, Peter, author
Routledge, 1998
Buku Teks
Derfler, Frank J., author
Ziff-Davis Press, 1992
Buku Teks
Riordan, Jan, author
Mosby, 1983
Buku Teks
Smerdon, Richard, author
Sweet and Maxwel, 2007
Buku Teks
Chambers, Erve, author
Waveland Press, 1989
Buku Teks