Murray, Sharon Smith
WB Saunder , 2007
Buku Teks SO
Gorrie, Trula Myers
Saunders, 1998
Buku Teks SO
Sally B. Olds, Marcia L. London, Patricia A. Wieland Ladewig, Michele R. Davidson
Pearson Education, 2004
Buku Referensi
MTTSON, SUSAN
W.B. Saunders, 2000
Buku Teks
Carol J. Green, editor
Jones & Bartlett Learning, 2016
Buku Teks SO