edited by Bryant W. Rossiter, John F. Hamilton
John Wiley & Sons, 1990
Buku Teks
Sime, Rodney J., author
Saunders College, 1990
Buku Teks
Barrow, Gordon M., author
McGraw-Hill, 1988
Buku Teks
Engel, Thomas, author
Pearson Prentice Hall, 2006
Buku Teks
Woodbury, George, author
International Thomson, 1997
Buku Teks