Werner, David, author
Hesperian Foundation , 1982
Buku Teks
Jones & Bartlett Learning, 2014
Buku Referensi
Christensen, Barbara Lauritsen, author
Mosby Elsevier, 2011
Buku Teks
Christensen, Barbara Lauritsen, author
Elsevier Health Sciences, 2013
Multimedia
Ewles, Linda, author
Scutari Press, 1995
Buku Referensi