edited by Sue Hinchliff
Churchill Livingstone, 2009
Buku Teks
Pohl, Margaret L., author
WM.C. Brown , 1978
Buku Teks
Pressman, Roger S., author
McGraw-Hill, 2010
Buku Teks
Davies, Douglas, 1942-, author
The Guilford Press, 2004
Buku Teks
Phillips, Anthony J., author
Elsevier, 2008
Buku Referensi