O.Day, Edward F.
Prentice-Hall, 1974
Buku Teks
Harley, John P., author
McGraw-Hill Book, 2000
Buku Teks
Woods, A.E., author
The Avi Publishing, 1977
Buku Teks
Vodopich, Darrell S., author
McGraw-Hill , 2005
Buku Teks
Perry, Anne Griffin, author
Mosby, 2006
Buku Teks