Wright, George, author
John Wiley & Sons, 2001
Buku Teks
edited by Sara Wickham
Philadelphia , 2005
Buku Teks
Churchill Livinstone , 2000
Buku Teks
Bailliere Tindall, 2000
Buku Teks
World Health Organization. Regional Office for South-East Asia , 1999
Buku Teks