Neier, Aryeh, author
University Press/ Princeton & Oxford, 2012
Buku Teks
Forsythe, David P., 1941-, author
Cambridge University Press, 2012
Buku Teks
McBeth, Adam, author
Oxford Univ Press, 2011
Buku Teks
edited by Julie Peters and Andrea Wolper
Rouledge, 1995
Buku Teks
World Health Organization, 2003
Buku Teks