Johnson, Ruth, author
Churchill Livingstone/Elsevier, 2010
Buku Teks
edited by Maureen D. Raynor, Jayne E. Marshall and Amanda Sullivan
Elsevier, 2005
Buku Teks
edited by Sara Wickham
Philadelphia , 2005
Buku Teks
Churchill Livinstone , 2000
Buku Teks
Terrell Ward Bynum, Simon Rogerson, editors
Blackwell Publishing, 2010
Buku Teks