Burke, Shirley R.
John Wiley & Sons, 1980
Buku Teks
Booth, Kathryn A., 1957-
McGraw-Hill, 2009
Buku Teks
Wilson, Kathleen J. W.
Churchill Livingstone , 1996
Buku Teks
Rutishauser, sigrid
Churchill Livingstone , 1994
Buku Teks
Roiger, Deborah
McGraw-Hill, 2013
Buku Teks