Cooper, Pat, author
Focal Press, 2005
Buku Teks
Cooper, Dona, author
Prentice-Hall, 1994
Buku Teks
Arnold, George T., author
McGrawHill, 1996
Buku Referensi
Kakonis, Tom E.
McGraw-Hill, 1978
Buku Teks
Oermann, Marilyn H., author
Lippincott , 2002
Buku Teks