Gudehus, Timm, author
[Springer, ], 2012
eBooks
Qvretveit, John
Open Univeristy press , 1982
Buku Teks
Elkin, Martha Keene, author
Mosby, 2000
Buku Teks
edited by Joanne M. Dochterman, Gloria M. Bulechek
Mosby, 2004
Buku Teks
Lubkin, Ilene Morof, author
Jones and Bartlett, 2006
Buku Teks