edited by Roy M. Anderson
Chapman & Hall, 1982
Buku Teks
Savitz, David A.
Oxford University Press, 2016
eBooks
Mausnes, Judith S.
W.B. Saunders , 1985
Buku Teks
Robinson, Derek
Churchill Livingstone, 1985
Buku Teks
Rothman, Kenneth J.
Oxford University Press, 2002
Buku Teks