Giovanni Battista Dagnino, editor
Edward Elgar, 2012
Buku Teks
Chase, Richard B., author
McGraw-Hill, 2001
Buku Teks
Bateman, Thomas S., author
McGraw-Hill, 1999
Buku Teks
Kahaner, Larry, author
Prenhallindo, 1998
Buku Teks
Robinson, E. A. G., author
Digswell Place James Nisbet, 1958
Buku Teks