Delp, Mahlon
Philldedelphia: Wb sounder company , 1981
Buku Teks
Saltman, Deborah, author
W.B. Saunders , 1987
Buku Teks
edited by John Munro
Churchill Livingstone, 1995
Buku Teks
edited by Graham Douglas, Fiona Nicol, Colin Robertson
Churchill Livingstone, 2009
Buku Teks
edited by Graham Douglas, Fiona Nicol, Colin Robertson
Elsevier, 2005
Buku Teks