Veronis, Andrew, author
Reston Publishing, 1978
Buku Teks
Streitmatter, Gene A., author
Reston, 1982
Buku Teks
Paterson, John, author
John Wiley & Sons, 1980
Buku Teks
Leventhal, Lance A., author
Prentice-Hall, 1987
Buku Teks
Crane, John, author
Prentice-Hall, 1980
Buku Teks