Veronis, Andrew, author
Reston Publishing, 1978
Buku Teks
Streitmatter, Gene A., author
Reston, 1982
Buku Teks
Leventhal, Lance A., author
Prentice-Hall, 1987
Buku Teks
Hanley, T., author
DP Publications, 1993
Buku Teks
Givone, Donald D., author
McGraw-Hill, 1980
Buku Teks