Singer, Adam J., author
People's Medical Pub. House-USA, 2011
Buku Teks
McNabb, James W., author
Wolters Kluwer, 2015
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Kahn, Michael A., author
John Wiley & Sons, cop, 2014
Buku Teks
by Rob Herbert, Gro Jamtvedt, Judy Mead, and Kare Birger Hagen
Elsevier, 2005
Buku Teks
Kennedy, David, author
Bay Books, 1988
Buku Referensi