Thibodeau, Gary A., 1938-2013
Elsevier Mosby, 2012
Buku Teks
Nightingale, Florence
Churchill livingstone , 1980
Buku Teks
Aronoff, Mark
Blackwell, 2005
Buku Teks
Nemo, Philippe
Duquesne University Press, 2006
Buku Teks
Norris, Christopher
London: Academy Editions, 1988
Buku Teks