Baum, Steven K
The psychology of genocide: perpetrators, bystanders, and rescuers
Cambridge University Press, 2008
 Buku Teks
Southall, Ivan
Lawrence Hargrave
Melbourne: Oxford University Press, 1964
 Buku Teks
Davidson, Lionel
The rose of Tibet / Lionel Davidson
Oxford University Press, 1980
 Buku Teks
Davidson, Rob
Tourism / Rob Davidson
Longman , 1993
 Buku Teks
Davidson's principles and practice of medicine
edited by Brian R. Walker; Nicki R. Colledge; Ian D. Penman; Stuart H. Ralston ; illustrator, Robert Britton
Churchill Livingstone/Elsevier, 2014
 Buku Teks