edited by Charles E. Schaefer and Kevin J. O'Connor
John Wiley & Sons, 1982
Buku Referensi
Carmichael, Karla D.
Pearson - Prentice Hall, 2006
Buku Teks
edited by David A. Crenshaw and Anne L. Stewart ; foreword by Stuart Brown.
The Guilford Press, 2015
Buku Teks
Desak Putu Kristian Purnamiasih
Fakultas Ilmu Keperawatan Universitas Indonesia, 2013
UI - Tesis (Membership)
Wilson, Kate
Bailliere Tindall, 1997
Buku Teks