Barlow, David H., author
Thomson , 2005
Buku Teks
Martin, Rod A., author
Elsevier Academic Press, 2007
Buku Teks
Hamric, Ann B., author
Saunders Elsevier, 2009
Buku Teks
Klip, Andre, author
Intersentia, 2009
Buku Teks
Young, Caroline, author
Jones and Bartlett, 2011
Buku Teks