Zerwekh, JoAnn Graham, author
Elsevier , 2009
Buku Teks
Hein, Eleanor C., author
Lippincott , 2001
Buku Teks
Chitty, Kay Kittrell, author
W.B. Saunders , 1997
Buku Teks
Macmillan Company of Australia, 1989
Buku Teks
edited by Jonathan Gabe, Michael Calnan and Michael Bury
Routledge , 1991
Buku Teks