Canavan, P. Joseph, author
D.C. Health and Company, 1990
Buku Teks
Brannan, Bob, author
McGraw-Hill , 2003
Buku Teks
McCall, John
Monarch Press, 1966
Buku Teks
McCrimmon, James M., author
Houghton Miffiln, 1967
Buku Teks
Clouse, Barbara Fine, author
McGraw-Hill, 2013
Buku Teks