edited by Linda Louise Childs, Lesley Coles, Barbara Marjoram
Wiley-Blackwell, 2009
Buku Teks
Sully, Philippa
Mosby Elsevier, 2010
Buku Teks
Cooley, Marcia, author
Reston publishing, 1988
Buku Teks
Boyd, Claire, author
Wiley Blackwell, 2014
Buku Teks
McEwen, Abayomi, author
McGraw-hill Open Univer, 2011
Buku Teks SO