Urden, Linda D.
Elsevier Mosby, 2012
Buku Teks
R.F.Armstrong, Catherine Bullen,S.L.Coen, Mervyn Singer, A.RWebb
Oxford University Press, 1993
Buku Teks SO
Bucher, Linda
W.B. Saunders, 1999
Buku Teks SO
edited by Joann Grif Alspach
Saunders, 2006
Buku Teks SO
Chulay, Marianne
McGraw-Hill, 2006
Buku Teks SO