Andrew I. Cohen: Christopher Health Well,am
Blackwell, 2005
Buku Teks SO
edited by Thomas Christiano and John Christman
John Wiley & Sons, 2007
Buku Teks SO
edited, John B. Williamson, Linda Evans and Michael Rustad
Little, Brown, 1985
Buku Teks SO
Edited by Robert J. Stainton
Blackwell Publishing, 2006
Buku Teks SO
Andrew I. Cohen, Christopher Heath Wellman.
Wiley Blackwell, 2014
Buku Teks SO