Crabb, Peter R., author
McGraw-Hill, 2003
Buku Teks
Amling, Frederick, author
Prentice-Hall, 1965
Buku Teks
Jones, Charles P., author
John Wiley & Sons, 2000
Buku Teks
Jones, Charles P., author
John Wiley & Sons,
Buku Teks
Francis, Jack Clark, author
McGraw-Hill, 1991
Buku Teks