Hale, Sandra, author
Bloomsbury, 2013
Buku Teks
Maimon, Elaine P., author
McGraw-Hill , 2003
Buku Referensi
Beardsmore, Caroline. author
Wiley-Blackwell,, 2013
Buku Teks
Haselbauer, Kathleen J.
Greenwood Press, 1987
Buku Referensi
Departemen Kesehatan, 1999
Buku Teks