Jones, Becky
BBC Worldwide Limited, 2006
Multimedia
Halabi, Sam F.
Oxford University Press, 2016
eBooks
Goldsmid, John
New South Wales University Press, 1988
Buku Teks SO
edited by Gerald L. Mandell, John E. Bennett and Raphael Dolin
Churchill Livingstone Elsevier, 2010
Buku Teks SO
edited by John E. Bennett, Raphael Dolin and Martin J. Blaser
Elsevier/Saunders, 2015
Buku Teks SO