Shelton, Patrick J.
London : AN Aspen Publication, 2000,
Buku Teks
Dian Kusumawardhani, author
2009
Artikel Jurnal
Emalia Iragiliati Sukarni, author
State University of Malang. Faculty of Letters, 2012
Artikel Jurnal
Purwanto, author
Fakultas Ilmu Keperawatan Universitas Indonesia, 2012
UI - Tesis (Open)
Steiber, Steven, author
American Hospital Publishing, 1990
Buku Referensi