Fisk, Edward R.
Prentice-Hall, 1997
Buku Teks
Patrick, Charles
Pearson/Prentice Hall, 2004
Buku Teks
Mubarak, Saleh
Pearson-Prentice Hall, 2005
Buku Teks
Clough, Richard Hudson
John Wiley & Sons, c1991
Buku Teks
Levy, Sidney M.
McGraw-Hill , 2002
Buku Teks