Videbeck, Sheila L.
Wolters Kluwer, 2017
Buku Teks SO
Fontaine, Karen Lee
Prentice-Hall, 2003
Buku Teks SO
Fontaine, Karen Lee
Pearson Education, 2003
Multimedia
Worley, Nancy K.
Mosby, 1997
Buku Teks SO
[edited by] Katherine M. Fortinash, Patricia A. Holoday Worret
St Louis , 2004
Buku Teks SO