edited by Dean Jaensch
Wakefield Press, 1986
Buku Teks SO
Nightingale, Florence
Churchill livingstone , 1980
Buku Teks SO
Bainbridge, David
Pearson - Longman, 2002
Buku Teks
McJohn, Stephen M., 1959-
Wolters Kluwers, 2015
Buku Teks
Horrie, Chris
Virgin Books, 1991
Buku Teks SO